Add a default PGO profile for the compiler by jakebailey · Pull Request #64986 · microsoft/TypeScript

Jake Bailey (jakebailey) · 2026-10-27T21:46:56Z

Let's give this a try again.

PGO training

default.pgo is generated by the Generate PGO profile workflow in microsoft/typescript-benchmarking; this one came from run 40764058553 against TypeScript main (equivalent to 050fb369ee1, which this branch has merged).

The workflow builds a non-PGO noembed compiler, then profiles one emit-enabled compilation of each compiler scenario that perf test this faster benchmarks, with diagnostic reporting disabled to avoid profiling forced garbage collections. The CPU profiles are merged with go tool pprof -proto, without normalization.

Scenarios: Compiler-Unions, angular-1, arktype, class-transformer, effect, mui-docs, sentry, social-app, strada-build-src, strada-compiler, t3code-server, tanstack-router, ts-pre-modules, vscode, webpack, xstate-main.

Scenario setup and configs are in cases/scenarios; the emit overrides are in scripts/src/generatePgo.ts.

Optimize the compiler for real-world checking and emit workloads by making a representative CPU profile available to Go's default PGO build. The training workload is one emit-enabled compilation each of VS Code, Sentry, Bluesky, t3code server, t3code web, and Material UI docs from jakebailey/TypeScript-blog-benchmarks, using the default four checkers. Profiles were collected at 4163ca1 with Go 1.27.3 on linux/amd64. Following golang/go's src/cmd/compile/profile.sh, merge the six CPU profiles with go tool pprof -proto, retaining their CPU-sample weights.

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Jake Bailey (jakebailey) · 2026-10-27T21:47:25Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-27T21:47:30Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	👀 Results

typescript-automation · 2026-10-27T22:29:32Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

Provisional hosted-runner results: these VMs are not the dedicated benchmark machines. Results may be noisier and are not comparable to the historical series. For comparisons, both revisions of each scenario ran on the same VM.

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{104,188k (± 0.02%)}	_{104,126k (± 0.03%)}	_{-63k (- 0.06%)}	_104,041k	_104,214k	_{p=0.004 n=12}
_{Memory Allocs}	_{2,200,666 (± 0.00%)}	_{2,029,582 (± 0.00%)}	_{🟩-171,084 (- 7.77%)}	_2,029,351	_2,029,830	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.032s (± 3.56%)}	_{0.032s (± 4.16%)}	_~	_0.028s	_0.034s	_{p=0.677 n=12}
_{Bind Time}	_{0.012s (± 4.64%)}	_{0.012s (± 9.27%)}	_~	_0.010s	_0.016s	_{p=0.878 n=12}
_{Check Time}	_{0.340s (± 0.70%)}	_{0.341s (± 1.37%)}	_~	_0.331s	_0.352s	_{p=0.830 n=12}
_{Emit Time}	_{0.211s (± 1.62%)}	_{0.208s (± 2.50%)}	_~	_0.194s	_0.220s	_{p=0.433 n=12}
_{Total Time}	_{0.600s (± 0.70%)}	_{0.598s (± 1.63%)}	_~	_0.581s	_0.620s	_{p=0.640 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{586,513 (± 0.02%)}	_{586,570 (± 0.01%)}	_~	_586,389	_586,750	_{p=0.298 n=12}
_Types	_{241,693 (± 0.00%)}	_{241,691 (± 0.00%)}	_~	_241,690	_241,693	_{p=0.055 n=12}
_{Memory Used}	_{517,800k (± 0.02%)}	_{517,908k (± 0.02%)}	_~	_517,589k	_518,278k	_{p=0.219 n=12}
_{Memory Allocs}	_{13,117,484 (± 0.07%)}	_{12,267,305 (± 0.07%)}	_{🟩-850,179 (- 6.48%)}	_12,258,369	_12,307,842	_{p=0.000 n=12}
_{Config Time}	_{0.017s (± 1.07%)}	_0.017s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.188s (± 2.62%)}	_{0.183s (± 3.24%)}	_~	_0.172s	_0.209s	_{p=0.053 n=12}
_{Bind Time}	_{0.054s (±11.73%)}	_{0.052s (± 7.39%)}	_~	_0.050s	_0.072s	_{p=0.255 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{1.130s (± 1.27%)}	_{1.130s (± 1.56%)}	_~	_1.081s	_1.177s	_{p=0.989 n=12}
_{Total Time}	_{1.403s (± 0.68%)}	_{1.394s (± 1.34%)}	_~	_1.338s	_1.447s	_{p=0.385 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_685,943	_685,943	_~	_~	_~	_{p=1.000 n=12}
_Types	_939,490	_939,490	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{497,263k (± 0.01%)}	_{497,236k (± 0.02%)}	_~	_497,056k	_497,411k	_{p=0.713 n=12}
_{Memory Allocs}	_{12,803,992 (± 0.02%)}	_{12,735,560 (± 0.01%)}	_{-68,432 (- 0.53%)}	_12,732,810	_12,740,481	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.058s (± 3.26%)}	_{0.057s (± 2.35%)}	_~	_0.054s	_0.062s	_{p=0.352 n=12}
_{Bind Time}	_{0.017s (±11.48%)}	_{0.019s (± 9.88%)}	_{🔻+0.002s (+12.20%)}	_0.015s	_0.025s	_{p=0.046 n=12}
_{Check Time}	_{1.371s (± 0.68%)}	_{1.396s (± 0.52%)}	_{+0.024s (+ 1.76%)}	_1.378s	_1.412s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.488s (± 0.70%)}	_{1.516s (± 0.70%)}	_{+0.028s (+ 1.90%)}	_1.493s	_1.541s	_{p=0.000 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_3,784,027	_3,784,027	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,355,982	_1,355,982	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,831,344k (± 0.10%)}	_{1,830,307k (± 0.09%)}	_~	_1,826,188k	_1,835,497k	_{p=0.378 n=12}
_{Memory Allocs}	_{26,706,258 (± 0.07%)}	_{25,560,195 (± 0.09%)}	_{🟩-1,146,063 (- 4.29%)}	_25,513,915	_25,605,192	_{p=0.000 n=12}
_{Config Time}	_{0.014s (± 2.00%)}	_{0.014s (± 2.00%)}	_~	_0.014s	_0.015s	_{p=1.000 n=12}
_{Parse Time}	_{0.488s (± 2.88%)}	_{0.496s (± 3.03%)}	_~	_0.449s	_0.541s	_{p=0.599 n=12}
_{Bind Time}	_{0.001s (±23.23%)}	_{0.001s (±16.76%)}	_~	_0.001s	_0.002s	_{p=0.317 n=12}
_{Check Time}	_{4.507s (± 0.39%)}	_{4.354s (± 0.47%)}	_{🟩-0.152s (- 3.38%)}	_4.304s	_4.440s	_{p=0.000 n=12}
_{Emit Time}	_{0.419s (± 5.24%)}	_{0.389s (± 7.90%)}	_{🟩-0.030s (- 7.17%)}	_0.329s	_0.467s	_{p=0.046 n=12}
_{Total Time}	_{6.218s (± 0.59%)}	_{6.094s (± 0.78%)}	_{-0.123s (- 1.98%)}	_5.985s	_6.202s	_{p=0.000 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,793,249	_4,793,249	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,607,051	_2,607,051	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,879,163k (± 0.06%)}	_{2,878,144k (± 0.03%)}	_~	_2,876,566k	_2,880,230k	_{p=0.767 n=12}
_{Memory Allocs}	_{75,984,467 (± 0.08%)}	_{75,168,151 (± 0.19%)}	_{-816,317 (- 1.07%)}	_74,876,845	_75,648,528	_{p=0.000 n=12}
_{Config Time}	_{0.044s (± 0.70%)}	_{0.045s (± 0.81%)}	_~	_0.044s	_0.046s	_{p=0.073 n=12}
_{Parse Time}	_{0.704s (± 3.69%)}	_{0.694s (± 3.13%)}	_~	_0.642s	_0.745s	_{p=0.744 n=12}
_{Bind Time}	_{0.185s (±14.05%)}	_{0.214s (±15.03%)}	_{🔻+0.029s (+15.71%)}	_0.172s	_0.298s	_{p=0.003 n=12}
_{Check Time}	_{9.119s (± 0.38%)}	_{9.139s (± 0.41%)}	_~	_9.074s	_9.277s	_{p=0.478 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{10.107s (± 0.48%)}	_{10.147s (± 0.40%)}	_~	_10.067s	_10.292s	_{p=0.285 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,883,075	_1,883,075	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,158,171	_1,158,171	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{971,652k (± 0.02%)}	_{971,738k (± 0.03%)}	_~	_971,107k	_972,461k	_{p=0.932 n=12}
_{Memory Allocs}	_{13,713,815 (± 0.17%)}	_{13,573,054 (± 0.19%)}	_{-140,761 (- 1.03%)}	_13,523,148	_13,667,521	_{p=0.000 n=12}
_{Config Time}	_{0.015s (± 1.93%)}	_{0.015s (± 1.65%)}	_~	_0.014s	_0.015s	_{p=1.000 n=12}
_{Parse Time}	_{0.246s (± 3.56%)}	_{0.242s (± 2.88%)}	_~	_0.227s	_0.269s	_{p=0.599 n=12}
_{Bind Time}	_{0.052s (±13.19%)}	_{0.054s (± 9.65%)}	_{🔻+0.002s (+ 4.65%)}	_0.048s	_0.080s	_{p=0.043 n=12}
_{Check Time}	_{2.119s (± 0.44%)}	_{2.106s (± 0.66%)}	_~	_2.071s	_2.158s	_{p=0.097 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.452s (± 0.42%)}	_{2.435s (± 0.62%)}	_~	_2.397s	_2.478s	_{p=0.086 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,184,976	_1,184,976	_~	_~	_~	_{p=1.000 n=12}
_Types	_438,967	_438,967	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,168,665k (± 0.38%)}	_{1,166,772k (± 0.29%)}	_~	_1,159,022k	_1,175,972k	_{p=0.410 n=12}
_{Memory Allocs}	_{77,390,458 (± 0.14%)}	_{76,201,933 (± 0.15%)}	_{-1,188,526 (- 1.54%)}	_75,969,201	_76,601,679	_{p=0.000 n=12}
_{Config Time}	_{0.004s (±17.94%)}	_{0.004s (±16.90%)}	_~	_0.002s	_0.006s	_{p=0.733 n=12}
_{Parse Time}	_{0.188s (± 2.75%)}	_{0.181s (± 1.92%)}	_{🟩-0.007s (- 3.90%)}	_0.172s	_0.188s	_{p=0.043 n=12}
_{Bind Time}	_0.000s	_{0.000s (±217.90%)}	_~	_0.000s	_0.002s	_{p=1.000 n=12}
_{Check Time}	_{1.183s (± 0.92%)}	_{1.180s (± 0.47%)}	_~	_1.162s	_1.191s	_{p=1.000 n=12}
_{Emit Time}	_{0.217s (± 1.58%)}	_{0.210s (± 2.03%)}	_{🟩-0.007s (- 3.38%)}	_0.197s	_0.223s	_{p=0.010 n=12}
_{Total Time}	_{14.075s (± 0.97%)}	_{13.828s (± 0.55%)}	_{-0.247s (- 1.76%)}	_13.605s	_14.000s	_{p=0.004 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_263,513	_263,513	_~	_~	_~	_{p=1.000 n=12}
_Types	_196,118	_196,118	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{224,587k (± 0.03%)}	_{224,573k (± 0.02%)}	_~	_224,468k	_224,701k	_{p=0.977 n=12}
_{Memory Allocs}	_{4,303,416 (± 0.01%)}	_{4,239,811 (± 0.01%)}	_{-63,605 (- 1.48%)}	_4,238,838	_4,240,521	_{p=0.000 n=12}
_{Config Time}	_{0.001s (±19.81%)}	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.071s (± 3.95%)}	_{0.068s (± 4.08%)}	_~	_0.061s	_0.075s	_{p=0.153 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.595s (± 0.69%)}	_{0.590s (± 0.62%)}	_~	_0.582s	_0.598s	_{p=0.173 n=12}
_{Emit Time}	_{0.092s (± 4.13%)}	_{0.092s (± 2.20%)}	_~	_0.087s	_0.097s	_{p=0.765 n=12}
_{Total Time}	_{0.793s (± 1.03%)}	_{0.786s (± 0.73%)}	_~	_0.773s	_0.804s	_{p=0.247 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,350,705	_4,350,705	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,040,691	_3,040,691	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,432,850k (± 0.02%)}	_{2,433,078k (± 0.03%)}	_~	_2,431,597k	_2,434,940k	_{p=0.630 n=12}
_{Memory Allocs}	_{37,892,311 (± 0.04%)}	_{37,513,057 (± 0.11%)}	_{-379,254 (- 1.00%)}	_37,443,245	_37,663,958	_{p=0.000 n=12}
_{Config Time}	_0.005s	_0.005s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.361s (± 2.77%)}	_{0.361s (± 1.87%)}	_~	_0.348s	_0.382s	_{p=0.660 n=12}
_{Bind Time}	_{0.118s (±13.06%)}	_{0.108s (± 7.45%)}	_~	_0.099s	_0.147s	_{p=0.416 n=12}
_{Check Time}	_{10.979s (± 0.89%)}	_{10.758s (± 0.45%)}	_{-0.222s (- 2.02%)}	_10.654s	_10.918s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{11.477s (± 0.86%)}	_{11.245s (± 0.43%)}	_{-0.231s (- 2.02%)}	_11.163s	_11.404s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_231,617	_231,617	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,196	_181,196	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{193,541k (± 0.02%)}	_{193,504k (± 0.03%)}	_~	_193,369k	_193,630k	_{p=0.198 n=12}
_{Memory Allocs}	_{1,372,719 (± 0.02%)}	_{1,317,818 (± 0.02%)}	_{🟩-54,901 (- 4.00%)}	_1,317,068	_1,318,469	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.061s (± 3.96%)}	_{0.059s (± 4.35%)}	_~	_0.053s	_0.066s	_{p=0.268 n=12}
_{Bind Time}	_{0.026s (± 5.17%)}	_{0.027s (± 7.10%)}	_~	_0.022s	_0.032s	_{p=0.554 n=12}
_{Check Time}	_{0.459s (± 0.80%)}	_{0.451s (± 0.83%)}	_{-0.007s (- 1.60%)}	_0.442s	_0.460s	_{p=0.009 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.556s (± 0.56%)}	_{0.546s (± 0.79%)}	_{-0.010s (- 1.81%)}	_0.535s	_0.554s	_{p=0.001 n=12}
_{vscode - native}
_Errors	₁₀	₁₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,304,211	_7,304,211	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,304,434	_4,304,434	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,086,949k (± 0.02%)}	_{5,086,496k (± 0.01%)}	_~	_5,085,076k	_5,088,316k	_{p=0.478 n=12}
_{Memory Allocs}	_{64,311,898 (± 0.01%)}	_{56,094,174 (± 0.03%)}	_{🟩-8,217,725 (-12.78%)}	_56,062,698	_56,134,425	_{p=0.000 n=12}
_{Config Time}	_{0.070s (± 0.75%)}	_{0.071s (± 1.41%)}	_~	_0.069s	_0.075s	_{p=0.181 n=12}
_{Parse Time}	_{1.352s (± 2.00%)}	_{1.322s (± 2.19%)}	_{-0.030s (- 2.22%)}	_1.251s	_1.404s	_{p=0.050 n=12}
_{Bind Time}	_{0.417s (±10.47%)}	_{0.406s (± 3.16%)}	_~	_0.378s	_0.448s	_{p=0.541 n=12}
_{Check Time}	_{10.724s (± 0.67%)}	_{10.843s (± 0.68%)}	_{+0.118s (+ 1.10%)}	_10.661s	_11.035s	_{p=0.025 n=12}
_{Emit Time}	_{3.868s (± 4.95%)}	_{3.442s (± 4.00%)}	_{🟩-0.426s (-11.01%)}	_3.304s	_4.114s	_{p=0.000 n=12}
_{Total Time}	_{16.504s (± 1.09%)}	_{16.156s (± 1.05%)}	_{-0.349s (- 2.11%)}	_15.926s	_16.934s	_{p=0.001 n=12}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_918,308	_918,308	_~	_~	_~	_{p=1.000 n=12}
_Types	_638,248	_638,248	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{691,232k (± 0.02%)}	_{691,082k (± 0.02%)}	_~	_690,813k	_691,488k	_{p=0.178 n=12}
_{Memory Allocs}	_{6,612,636 (± 0.01%)}	_{6,500,597 (± 0.05%)}	_{-112,039 (- 1.69%)}	_6,496,104	_6,514,896	_{p=0.000 n=12}
_{Config Time}	_{0.007s (± 4.22%)}	_{0.008s (± 4.38%)}	_~	_0.007s	_0.008s	_{p=0.680 n=12}
_{Parse Time}	_{0.207s (± 5.61%)}	_{0.208s (± 4.22%)}	_~	_0.172s	_0.227s	_{p=0.787 n=12}
_{Bind Time}	_{0.063s (±11.60%)}	_{0.061s (±12.37%)}	_~	_0.053s	_0.090s	_{p=0.466 n=12}
_{Check Time}	_{1.731s (± 0.29%)}	_{1.681s (± 0.42%)}	_{-0.050s (- 2.87%)}	_1.662s	_1.707s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.043s (± 0.52%)}	_{1.993s (± 0.91%)}	_{-0.050s (- 2.44%)}	_1.942s	_2.049s	_{p=0.000 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_640,494	_640,494	_~	_~	_~	_{p=1.000 n=12}
_Types	_387,992	_387,992	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{350,846k (± 0.03%)}	_{350,779k (± 0.04%)}	_~	_350,498k	_351,187k	_{p=0.319 n=12}
_{Memory Allocs}	_{4,067,693 (± 0.05%)}	_{4,009,858 (± 0.03%)}	_{-57,835 (- 1.42%)}	_4,007,247	_4,015,155	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.089s (± 2.66%)}	_{0.087s (± 2.36%)}	_~	_0.083s	_0.095s	_{p=0.243 n=12}
_{Bind Time}	_{0.024s (± 8.00%)}	_{0.025s (± 9.10%)}	_~	_0.022s	_0.033s	_{p=0.155 n=12}
_{Check Time}	_{0.607s (± 0.73%)}	_{0.629s (± 0.75%)}	_{+0.022s (+ 3.65%)}	_0.615s	_0.642s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.727s (± 0.76%)}	_{0.749s (± 0.66%)}	_{+0.022s (+ 3.04%)}	_0.732s	_0.761s	_{p=0.000 n=12}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₁₂
_Baseline	_baseline	₁₂

Developer Information:

Download Benchmarks

The initial profile mostly represents large TypeScript applications. Broaden it to include checker-heavy library code, declaration emit, JavaScript checking, and project-reference builds. Add one emit-enabled CPU profile each from ArkType, Webpack, and the TypeScript strada source build, using the same non-PGO seed compiler. Retain the original six profiles and merge all nine with pprof -proto, without reweighting their CPU samples. XState is excluded from training and reserved as an independent evaluation workload. Additional input revisions: ArkType: c34bf69b3371f63ae383ac533e63ad9311452a8b Webpack: 573ed5e52662f6c82ad0b6025ea13ccc2e6ba3a9 TypeScript strada: b465fdb ArkType emits JavaScript and declarations; Webpack checks and emits JavaScript with its existing diagnostics; the strada build uses -b src --force and emits declarations for the project-reference graph.

Jake Bailey (jakebailey) · 2026-10-28T00:04:03Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-28T00:04:09Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	❌ Results

typescript-automation · 2026-10-28T00:39:37Z

Jake Bailey (@jakebailey), the perf run you requested failed. You can check the log here.

Coverage builds with PGO exhaust the default temporary filesystem quota on the Linux ARM64 runner. Use the runner's temporary storage so tests and benchmarks can retain PGO without running out of temporary space.

Jake Bailey (jakebailey) · 2026-10-28T01:17:31Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-28T01:17:37Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	👀 Results

typescript-automation · 2026-10-28T01:57:11Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

Provisional hosted-runner results: these VMs are not the dedicated benchmark machines. Results may be noisier and are not comparable to the historical series. For comparisons, both revisions of each scenario ran on the same VM.

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{104,166k (± 0.04%)}	_{104,145k (± 0.04%)}	_~	_104,067k	_104,245k	_{p=0.443 n=12}
_{Memory Allocs}	_{2,200,566 (± 0.01%)}	_{2,029,703 (± 0.00%)}	_{🟩-170,863 (- 7.76%)}	_2,029,481	_2,029,846	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.032s (± 3.02%)}	_{0.031s (± 3.24%)}	_~	_0.028s	_0.033s	_{p=0.134 n=12}
_{Bind Time}	_{0.011s (± 5.19%)}	_{0.011s (± 6.47%)}	_~	_0.009s	_0.013s	_{p=0.704 n=12}
_{Check Time}	_{0.338s (± 0.49%)}	_{0.324s (± 0.65%)}	_{🟩-0.015s (- 4.33%)}	_0.319s	_0.330s	_{p=0.000 n=12}
_{Emit Time}	_{0.208s (± 1.67%)}	_{0.197s (± 1.97%)}	_{🟩-0.011s (- 5.33%)}	_0.181s	_0.206s	_{p=0.000 n=12}
_{Total Time}	_{0.595s (± 0.71%)}	_{0.567s (± 0.70%)}	_{🟩-0.027s (- 4.60%)}	_0.556s	_0.580s	_{p=0.000 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{586,591 (± 0.02%)}	_{586,630 (± 0.02%)}	_~	_586,212	_586,945	_{p=0.630 n=12}
_Types	_{241,691 (± 0.00%)}	_{241,693 (± 0.00%)}	_~	_241,690	_241,695	_{p=0.068 n=12}
_{Memory Used}	_{517,697k (± 0.02%)}	_{517,846k (± 0.03%)}	_~	_517,493k	_518,332k	_{p=0.203 n=12}
_{Memory Allocs}	_{13,113,478 (± 0.02%)}	_{12,265,574 (± 0.07%)}	_{🟩-847,903 (- 6.47%)}	_12,257,644	_12,308,996	_{p=0.000 n=12}
_{Config Time}	_0.017s	_{0.017s (± 1.06%)}	_~	_0.017s	_0.018s	_{p=1.000 n=12}
_{Parse Time}	_{0.190s (± 3.18%)}	_{0.185s (± 2.10%)}	_~	_0.174s	_0.194s	_{p=0.324 n=12}
_{Bind Time}	_{0.052s (± 7.38%)}	_{0.052s (± 4.32%)}	_~	_0.049s	_0.063s	_{p=0.052 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{1.151s (± 1.19%)}	_{1.139s (± 1.77%)}	_~	_1.096s	_1.196s	_{p=0.298 n=12}
_{Total Time}	_{1.423s (± 0.65%)}	_{1.406s (± 1.35%)}	_~	_1.355s	_1.455s	_{p=0.147 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_685,943	_685,943	_~	_~	_~	_{p=1.000 n=12}
_Types	_939,490	_939,490	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{497,187k (± 0.02%)}	_{497,200k (± 0.01%)}	_~	_497,034k	_497,336k	_{p=0.640 n=12}
_{Memory Allocs}	_{12,804,864 (± 0.02%)}	_{12,734,703 (± 0.02%)}	_{-70,161 (- 0.55%)}	_12,731,844	_12,745,931	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.062s (± 4.53%)}	_{0.061s (± 5.22%)}	_~	_0.057s	_0.073s	_{p=0.430 n=12}
_{Bind Time}	_{0.018s (± 7.40%)}	_{0.018s (±11.73%)}	_~	_0.016s	_0.026s	_{p=0.749 n=12}
_{Check Time}	_{1.394s (± 0.67%)}	_{1.395s (± 0.57%)}	_~	_1.371s	_1.414s	_{p=0.875 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.515s (± 0.72%)}	_{1.518s (± 0.91%)}	_~	_1.488s	_1.556s	_{p=0.810 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_3,784,027	_3,784,027	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,355,982	_1,355,982	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,829,545k (± 0.07%)}	_{1,829,315k (± 0.07%)}	_~	_1,826,553k	_1,834,197k	_{p=0.590 n=12}
_{Memory Allocs}	_{26,680,351 (± 0.06%)}	_{25,583,478 (± 0.13%)}	_{🟩-1,096,873 (- 4.11%)}	_25,518,510	_25,718,569	_{p=0.000 n=12}
_{Config Time}	_{0.014s (± 1.29%)}	_{0.014s (± 1.73%)}	_~	_0.014s	_0.015s	_{p=1.000 n=12}
_{Parse Time}	_{0.489s (± 2.11%)}	_{0.494s (± 3.04%)}	_~	_0.453s	_0.533s	_{p=0.504 n=12}
_{Bind Time}	_{0.002s (±21.90%)}	_{0.001s (±16.76%)}	_~	_0.001s	_0.002s	_{p=0.069 n=12}
_{Check Time}	_{4.385s (± 0.57%)}	_{4.222s (± 0.63%)}	_{🟩-0.162s (- 3.70%)}	_4.150s	_4.283s	_{p=0.000 n=12}
_{Emit Time}	_{0.391s (± 7.53%)}	_{0.377s (± 3.38%)}	_~	_0.331s	_0.389s	_{p=0.080 n=12}
_{Total Time}	_{6.080s (± 0.84%)}	_{5.925s (± 0.76%)}	_{-0.155s (- 2.54%)}	_5.834s	_6.107s	_{p=0.000 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,793,249	_4,793,249	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,607,051	_2,607,051	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,879,330k (± 0.07%)}	_{2,879,036k (± 0.03%)}	_~	_2,876,756k	_2,882,859k	_{p=0.977 n=12}
_{Memory Allocs}	_{76,021,267 (± 0.08%)}	_{75,051,837 (± 0.21%)}	_{-969,430 (- 1.28%)}	_74,703,986	_75,630,238	_{p=0.000 n=12}
_{Config Time}	_{0.045s (± 0.69%)}	_{0.045s (± 0.60%)}	_~	_0.044s	_0.046s	_{p=0.199 n=12}
_{Parse Time}	_{0.707s (± 2.83%)}	_{0.726s (± 3.20%)}	_~	_0.676s	_0.815s	_{p=0.081 n=12}
_{Bind Time}	_{0.198s (±15.07%)}	_{0.217s (±13.62%)}	_{🔻+0.019s (+ 9.70%)}	_0.170s	_0.312s	_{p=0.050 n=12}
_{Check Time}	_{9.282s (± 0.38%)}	_{9.227s (± 0.34%)}	_{-0.055s (- 0.59%)}	_9.140s	_9.309s	_{p=0.028 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{10.289s (± 0.52%)}	_{10.280s (± 0.43%)}	_~	_10.139s	_10.393s	_{p=0.966 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,883,075	_1,883,075	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,158,171	_1,158,171	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{971,741k (± 0.02%)}	_{971,976k (± 0.02%)}	_~	_971,680k	_972,541k	_{p=0.097 n=12}
_{Memory Allocs}	_{13,712,574 (± 0.15%)}	_{13,625,807 (± 0.38%)}	_{-86,767 (- 0.63%)}	_13,557,070	_13,800,761	_{p=0.005 n=12}
_{Config Time}	_{0.014s (± 2.16%)}	_{0.015s (± 1.93%)}	_~	_0.014s	_0.015s	_{p=0.100 n=12}
_{Parse Time}	_{0.237s (± 3.16%)}	_{0.257s (± 3.59%)}	_{🔻+0.020s (+ 8.39%)}	_0.235s	_0.287s	_{p=0.001 n=12}
_{Bind Time}	_{0.050s (±10.84%)}	_{0.064s (±14.78%)}	_{🔻+0.013s (+26.70%)}	_0.050s	_0.097s	_{p=0.001 n=12}
_{Check Time}	_{2.086s (± 0.39%)}	_{2.137s (± 0.87%)}	_{+0.051s (+ 2.46%)}	_2.085s	_2.194s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.407s (± 0.50%)}	_{2.494s (± 1.05%)}	_{+0.087s (+ 3.61%)}	_2.427s	_2.568s	_{p=0.000 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,184,976	_1,184,976	_~	_~	_~	_{p=1.000 n=12}
_Types	_438,967	_438,967	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,170,186k (± 0.27%)}	_{1,170,769k (± 0.56%)}	_~	_1,151,190k	_1,193,928k	_{p=0.843 n=12}
_{Memory Allocs}	_{77,330,278 (± 0.15%)}	_{76,265,563 (± 0.20%)}	_{-1,064,716 (- 1.38%)}	_75,852,187	_76,556,513	_{p=0.000 n=12}
_{Config Time}	_{0.006s (±10.93%)}	_{0.006s (±13.36%)}	_~	_0.003s	_0.007s	_{p=0.958 n=12}
_{Parse Time}	_{0.229s (± 3.11%)}	_{0.233s (± 2.19%)}	_~	_0.222s	_0.250s	_{p=0.325 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{1.487s (± 0.69%)}	_{1.507s (± 0.71%)}	_{+0.020s (+ 1.33%)}	_1.466s	_1.525s	_{p=0.007 n=12}
_{Emit Time}	_{0.278s (± 7.84%)}	_{0.270s (± 3.36%)}	_~	_0.255s	_0.305s	_{p=0.599 n=12}
_{Total Time}	_{17.682s (± 1.27%)}	_{17.778s (± 0.93%)}	_~	_17.389s	_18.216s	_{p=0.291 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_263,513	_263,513	_~	_~	_~	_{p=1.000 n=12}
_Types	_196,118	_196,118	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{224,659k (± 0.03%)}	_{224,586k (± 0.01%)}	_~	_224,493k	_224,666k	_{p=0.071 n=12}
_{Memory Allocs}	_{4,304,087 (± 0.01%)}	_{4,240,029 (± 0.01%)}	_{-64,058 (- 1.49%)}	_4,239,314	_4,241,151	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.074s (± 3.79%)}	_{0.074s (± 4.32%)}	_~	_0.065s	_0.081s	_{p=0.786 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.595s (± 0.45%)}	_{0.585s (± 0.55%)}	_{-0.010s (- 1.68%)}	_0.575s	_0.594s	_{p=0.000 n=12}
_{Emit Time}	_{0.096s (± 3.92%)}	_{0.091s (± 4.99%)}	_{🟩-0.005s (- 5.37%)}	_0.085s	_0.113s	_{p=0.007 n=12}
_{Total Time}	_{0.801s (± 0.85%)}	_{0.784s (± 0.71%)}	_{-0.016s (- 2.03%)}	_0.765s	_0.798s	_{p=0.000 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,350,705	_4,350,705	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,040,691	_3,040,691	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,433,743k (± 0.04%)}	_{2,433,128k (± 0.03%)}	_~	_2,431,638k	_2,436,330k	_{p=0.291 n=12}
_{Memory Allocs}	_{37,872,149 (± 0.05%)}	_{37,488,502 (± 0.09%)}	_{-383,646 (- 1.01%)}	_37,438,732	_37,647,155	_{p=0.000 n=12}
_{Config Time}	_0.005s	_0.005s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.355s (± 2.39%)}	_{0.352s (± 2.47%)}	_~	_0.339s	_0.389s	_{p=0.284 n=12}
_{Bind Time}	_{0.114s (±11.66%)}	_{0.114s (±11.56%)}	_~	_0.100s	_0.168s	_{p=0.898 n=12}
_{Check Time}	_{10.758s (± 0.45%)}	_{10.342s (± 0.35%)}	_{🟩-0.416s (- 3.86%)}	_10.248s	_10.426s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{11.244s (± 0.42%)}	_{10.827s (± 0.33%)}	_{🟩-0.417s (- 3.71%)}	_10.745s	_10.896s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_231,617	_231,617	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,196	_181,196	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{193,540k (± 0.02%)}	_{193,506k (± 0.01%)}	_~	_193,420k	_193,569k	_{p=0.080 n=12}
_{Memory Allocs}	_{1,372,446 (± 0.01%)}	_{1,317,765 (± 0.01%)}	_{🟩-54,681 (- 3.98%)}	_1,317,389	_1,318,437	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.065s (± 3.68%)}	_{0.059s (± 3.08%)}	_{🟩-0.005s (- 8.01%)}	_0.054s	_0.064s	_{p=0.003 n=12}
_{Bind Time}	_{0.027s (± 5.59%)}	_{0.026s (± 7.80%)}	_~	_0.022s	_0.033s	_{p=0.348 n=12}
_{Check Time}	_{0.463s (± 0.63%)}	_{0.451s (± 0.73%)}	_{-0.012s (- 2.49%)}	_0.444s	_0.461s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.564s (± 0.56%)}	_{0.546s (± 0.68%)}	_{🟩-0.018s (- 3.18%)}	_0.536s	_0.556s	_{p=0.000 n=12}
_{vscode - native}
_Errors	₁₀	₁₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,332,462	_7,332,462	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,311,168	_4,311,168	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,098,576k (± 0.02%)}	_{5,097,836k (± 0.02%)}	_~	_5,096,154k	_5,100,193k	_{p=0.291 n=12}
_{Memory Allocs}	_{64,450,648 (± 0.06%)}	_{56,180,146 (± 0.02%)}	_{🟩-8,270,502 (-12.83%)}	_56,165,339	_56,234,430	_{p=0.000 n=12}
_{Config Time}	_{0.069s (± 0.61%)}	_{0.069s (± 0.65%)}	_~	_0.068s	_0.070s	_{p=0.081 n=12}
_{Parse Time}	_{1.322s (± 1.97%)}	_{1.299s (± 1.78%)}	_~	_1.257s	_1.383s	_{p=0.124 n=12}
_{Bind Time}	_{0.389s (± 2.16%)}	_{0.421s (±10.03%)}	_~	_0.382s	_0.579s	_{p=0.202 n=12}
_{Check Time}	_{11.325s (± 0.68%)}	_{11.426s (± 0.75%)}	_{+0.102s (+ 0.90%)}	_11.232s	_11.650s	_{p=0.025 n=12}
_{Emit Time}	_{3.734s (± 2.71%)}	_{3.438s (± 6.86%)}	_{🟩-0.296s (- 7.94%)}	_3.164s	_4.218s	_{p=0.006 n=12}
_{Total Time}	_{16.909s (± 0.96%)}	_{16.725s (± 1.63%)}	_~	_16.208s	_17.636s	_{p=0.089 n=12}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_925,044	_925,044	_~	_~	_~	_{p=1.000 n=12}
_Types	_647,695	_647,695	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{697,574k (± 0.02%)}	_{697,619k (± 0.01%)}	_~	_697,363k	_697,949k	_{p=0.478 n=12}
_{Memory Allocs}	_{6,677,291 (± 0.03%)}	_{6,558,825 (± 0.01%)}	_{-118,466 (- 1.77%)}	_6,556,973	_6,561,571	_{p=0.000 n=12}
_{Config Time}	_0.007s	_0.007s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.202s (± 4.73%)}	_{0.196s (± 3.66%)}	_~	_0.179s	_0.212s	_{p=0.451 n=12}
_{Bind Time}	_{0.061s (±15.54%)}	_{0.056s (± 7.76%)}	_~	_0.050s	_0.076s	_{p=0.989 n=12}
_{Check Time}	_{1.692s (± 0.75%)}	_{1.608s (± 0.87%)}	_{🟩-0.084s (- 4.95%)}	_1.584s	_1.647s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.997s (± 1.04%)}	_{1.904s (± 0.85%)}	_{🟩-0.093s (- 4.64%)}	_1.868s	_1.953s	_{p=0.000 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_640,494	_640,494	_~	_~	_~	_{p=1.000 n=12}
_Types	_387,992	_387,992	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{350,803k (± 0.02%)}	_{350,911k (± 0.03%)}	_~	_350,679k	_351,223k	_{p=0.128 n=12}
_{Memory Allocs}	_{4,066,067 (± 0.05%)}	_{4,009,218 (± 0.08%)}	_{-56,849 (- 1.40%)}	_3,999,705	_4,016,740	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.090s (± 4.09%)}	_{0.089s (± 3.11%)}	_~	_0.082s	_0.096s	_{p=0.579 n=12}
_{Bind Time}	_{0.026s (±11.68%)}	_{0.026s (±11.00%)}	_~	_0.022s	_0.034s	_{p=0.875 n=12}
_{Check Time}	_{0.603s (± 0.91%)}	_{0.614s (± 0.70%)}	_{+0.011s (+ 1.85%)}	_0.606s	_0.627s	_{p=0.002 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.728s (± 0.86%)}	_{0.738s (± 0.63%)}	_{+0.010s (+ 1.32%)}	_0.726s	_0.752s	_{p=0.004 n=12}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₁₂
_Baseline	_baseline	₁₂

Developer Information:

Download Benchmarks

Extended diagnostics force two garbage collections after compilation, which biases the training profile toward work normal builds do not do. Train on the same nine emit-enabled workloads without diagnostic reporting so PGO reflects ordinary compiler execution.

Jake Bailey (jakebailey) · 2026-10-28T04:01:58Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-28T04:02:03Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	👀 Results

typescript-automation · 2026-10-28T04:39:49Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

Provisional hosted-runner results: these VMs are not the dedicated benchmark machines. Results may be noisier and are not comparable to the historical series. For comparisons, both revisions of each scenario ran on the same VM.

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{104,144k (± 0.04%)}	_{104,151k (± 0.04%)}	_~	_104,057k	_104,291k	_{p=1.000 n=12}
_{Memory Allocs}	_{2,200,568 (± 0.01%)}	_{1,266,280 (± 0.01%)}	_{🟩-934,288 (-42.46%)}	_1,265,964	_1,266,809	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.032s (± 3.21%)}	_{0.031s (± 2.70%)}	_~	_0.029s	_0.033s	_{p=0.206 n=12}
_{Bind Time}	_{0.011s (± 7.44%)}	_{0.012s (± 5.26%)}	_~	_0.011s	_0.014s	_{p=0.088 n=12}
_{Check Time}	_{0.305s (± 0.49%)}	_{0.295s (± 1.21%)}	_{🟩-0.010s (- 3.14%)}	_0.289s	_0.306s	_{p=0.000 n=12}
_{Emit Time}	_{0.202s (± 1.98%)}	_{0.179s (± 1.64%)}	_{🟩-0.023s (-11.48%)}	_0.169s	_0.185s	_{p=0.000 n=12}
_{Total Time}	_{0.556s (± 0.85%)}	_{0.522s (± 1.01%)}	_{🟩-0.034s (- 6.15%)}	_0.511s	_0.539s	_{p=0.000 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{586,552 (± 0.01%)}	_{586,497 (± 0.02%)}	_~	_586,173	_586,817	_{p=0.671 n=12}
_Types	_{241,692 (± 0.00%)}	_{241,692 (± 0.00%)}	_~	_241,690	_241,692	_{p=1.000 n=12}
_{Memory Used}	_{517,907k (± 0.03%)}	_{517,766k (± 0.02%)}	_~	_517,523k	_518,017k	_{p=0.160 n=12}
_{Memory Allocs}	_{13,111,317 (± 0.01%)}	_{7,807,689 (± 0.21%)}	_{🟩-5,303,628 (-40.45%)}	_7,797,329	_7,889,710	_{p=0.000 n=12}
_{Config Time}	_{0.017s (± 1.45%)}	_{0.017s (± 1.07%)}	_~	_0.016s	_0.017s	_{p=1.000 n=12}
_{Parse Time}	_{0.187s (± 2.44%)}	_{0.191s (± 3.96%)}	_~	_0.175s	_0.216s	_{p=0.599 n=12}
_{Bind Time}	_{0.052s (±11.67%)}	_{0.051s (± 2.78%)}	_{-0.001s (- 0.97%)}	_0.050s	_0.058s	_{p=0.004 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{1.153s (± 1.73%)}	_{1.049s (± 1.12%)}	_{🟩-0.104s (- 9.03%)}	_1.027s	_1.086s	_{p=0.000 n=12}
_{Total Time}	_{1.419s (± 1.35%)}	_{1.319s (± 1.33%)}	_{🟩-0.100s (- 7.04%)}	_1.289s	_1.394s	_{p=0.000 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_685,943	_685,943	_~	_~	_~	_{p=1.000 n=12}
_Types	_939,490	_939,490	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{497,162k (± 0.01%)}	_{497,250k (± 0.02%)}	_~	_497,108k	_497,497k	_{p=0.143 n=12}
_{Memory Allocs}	_{12,803,172 (± 0.02%)}	_{12,096,831 (± 0.01%)}	_{🟩-706,341 (- 5.52%)}	_12,094,085	_12,101,125	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.059s (± 4.06%)}	_{0.058s (± 4.17%)}	_~	_0.050s	_0.066s	_{p=0.538 n=12}
_{Bind Time}	_{0.016s (± 3.90%)}	_{0.017s (± 6.50%)}	_~	_0.015s	_0.020s	_{p=0.542 n=12}
_{Check Time}	_{1.354s (± 0.67%)}	_{1.351s (± 0.52%)}	_~	_1.333s	_1.369s	_{p=0.723 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.466s (± 0.71%)}	_{1.463s (± 0.50%)}	_~	_1.443s	_1.479s	_{p=0.854 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_3,784,027	_3,784,027	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,355,982	_1,355,982	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,830,236k (± 0.08%)}	_{1,831,474k (± 0.09%)}	_~	_1,828,656k	_1,836,701k	_{p=0.272 n=12}
_{Memory Allocs}	_{26,689,729 (± 0.07%)}	_{25,988,353 (± 0.07%)}	_{-701,376 (- 2.63%)}	_25,958,428	_26,054,055	_{p=0.000 n=12}
_{Config Time}	_{0.014s (± 1.29%)}	_{0.014s (± 1.29%)}	_~	_0.014s	_0.015s	_{p=1.000 n=12}
_{Parse Time}	_{0.501s (± 2.63%)}	_{0.495s (± 2.69%)}	_~	_0.452s	_0.518s	_{p=0.523 n=12}
_{Bind Time}	_{0.002s (±35.77%)}	_0.001s	_{🟩-0.001s (-36.84%)}	_~	_~	_{p=0.037 n=12}
_{Check Time}	_{4.319s (± 0.57%)}	_{4.203s (± 0.68%)}	_{-0.116s (- 2.69%)}	_4.140s	_4.283s	_{p=0.000 n=12}
_{Emit Time}	_{0.399s (± 8.56%)}	_{0.404s (± 5.30%)}	_~	_0.383s	_0.468s	_{p=0.966 n=12}
_{Total Time}	_{6.024s (± 0.85%)}	_{5.920s (± 0.92%)}	_{-0.104s (- 1.72%)}	_5.811s	_6.079s	_{p=0.010 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,793,249	_4,793,249	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,607,051	_2,607,051	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,879,080k (± 0.05%)}	_{2,880,864k (± 0.07%)}	_~	_2,876,169k	_2,887,401k	_{p=0.160 n=12}
_{Memory Allocs}	_{75,978,704 (± 0.18%)}	_{75,035,355 (± 0.09%)}	_{-943,349 (- 1.24%)}	_74,843,633	_75,230,501	_{p=0.000 n=12}
_{Config Time}	_{0.044s (± 1.28%)}	_{0.044s (± 0.95%)}	_~	_0.044s	_0.046s	_{p=1.000 n=12}
_{Parse Time}	_{0.730s (± 5.03%)}	_{0.707s (± 4.00%)}	_~	_0.644s	_0.784s	_{p=0.242 n=12}
_{Bind Time}	_{0.176s (± 7.74%)}	_{0.215s (±13.90%)}	_{🔻+0.039s (+22.10%)}	_0.179s	_0.304s	_{p=0.001 n=12}
_{Check Time}	_{9.180s (± 0.54%)}	_{8.974s (± 0.18%)}	_{-0.206s (- 2.25%)}	_8.928s	_9.000s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{10.189s (± 0.71%)}	_{9.998s (± 0.21%)}	_{-0.191s (- 1.88%)}	_9.954s	_10.052s	_{p=0.000 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,883,075	_1,883,075	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,158,171	_1,158,171	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{971,566k (± 0.02%)}	_{971,551k (± 0.02%)}	_~	_971,075k	_971,894k	_{p=0.977 n=12}
_{Memory Allocs}	_{13,712,219 (± 0.23%)}	_{13,545,522 (± 0.13%)}	_{-166,697 (- 1.22%)}	_13,507,829	_13,601,852	_{p=0.000 n=12}
_{Config Time}	_{0.015s (± 1.22%)}	_{0.015s (± 2.11%)}	_~	_0.014s	_0.015s	_{p=0.317 n=12}
_{Parse Time}	_{0.240s (± 2.58%)}	_{0.239s (± 3.08%)}	_~	_0.225s	_0.264s	_{p=0.638 n=12}
_{Bind Time}	_{0.054s (±17.96%)}	_{0.067s (±13.76%)}	_{🔻+0.013s (+24.85%)}	_0.052s	_0.089s	_{p=0.006 n=12}
_{Check Time}	_{2.137s (± 0.27%)}	_{2.080s (± 0.70%)}	_{-0.057s (- 2.67%)}	_2.047s	_2.115s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.465s (± 0.47%)}	_{2.421s (± 0.78%)}	_{-0.043s (- 1.76%)}	_2.377s	_2.474s	_{p=0.000 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,184,976	_1,184,976	_~	_~	_~	_{p=1.000 n=12}
_Types	_438,967	_438,967	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,168,815k (± 0.42%)}	_{1,157,376k (± 0.35%)}	_{-11,438k (- 0.98%)}	_1,150,015k	_1,174,201k	_{p=0.002 n=12}
_{Memory Allocs}	_{77,347,843 (± 0.20%)}	_{47,547,898 (± 0.12%)}	_{🟩-29,799,945 (-38.53%)}	_47,426,207	_47,699,251	_{p=0.000 n=12}
_{Config Time}	_{0.005s (±20.66%)}	_{0.004s (± 7.59%)}	_~	_0.003s	_0.004s	_{p=0.094 n=12}
_{Parse Time}	_{0.188s (± 2.86%)}	_{0.184s (± 3.08%)}	_~	_0.170s	_0.205s	_{p=0.173 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{1.137s (± 1.53%)}	_{1.136s (± 0.77%)}	_~	_1.116s	_1.159s	_{p=0.660 n=12}
_{Emit Time}	_{0.220s (± 2.76%)}	_{0.172s (± 2.13%)}	_{🟩-0.047s (-21.56%)}	_0.166s	_0.184s	_{p=0.000 n=12}
_{Total Time}	_{13.682s (± 1.29%)}	_{12.998s (± 0.84%)}	_{🟩-0.684s (- 5.00%)}	_12.755s	_13.280s	_{p=0.000 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_263,513	_263,513	_~	_~	_~	_{p=1.000 n=12}
_Types	_196,118	_196,118	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{224,653k (± 0.02%)}	_{224,609k (± 0.02%)}	_~	_224,546k	_224,740k	_{p=0.068 n=12}
_{Memory Allocs}	_{4,303,511 (± 0.01%)}	_{2,403,345 (± 0.01%)}	_{🟩-1,900,166 (-44.15%)}	_2,402,507	_2,403,853	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.077s (± 4.93%)}	_{0.070s (± 5.84%)}	_{🟩-0.007s (- 9.24%)}	_0.063s	_0.082s	_{p=0.012 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.560s (± 0.76%)}	_{0.549s (± 0.58%)}	_{-0.011s (- 1.95%)}	_0.540s	_0.556s	_{p=0.000 n=12}
_{Emit Time}	_{0.093s (± 3.19%)}	_{0.057s (± 5.54%)}	_{🟩-0.035s (-37.98%)}	_0.051s	_0.065s	_{p=0.000 n=12}
_{Total Time}	_{0.766s (± 0.92%)}	_{0.713s (± 0.89%)}	_{🟩-0.053s (- 6.92%)}	_0.699s	_0.734s	_{p=0.000 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,350,705	_4,350,705	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,040,691	_3,040,691	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,433,559k (± 0.04%)}	_{2,433,251k (± 0.03%)}	_~	_2,431,333k	_2,435,296k	_{p=0.590 n=12}
_{Memory Allocs}	_{37,889,742 (± 0.05%)}	_{37,344,534 (± 0.07%)}	_{-545,208 (- 1.44%)}	_37,287,478	_37,392,501	_{p=0.000 n=12}
_{Config Time}	_{0.005s (± 3.57%)}	_0.005s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.361s (± 2.84%)}	_{0.353s (± 4.08%)}	_~	_0.316s	_0.379s	_{p=0.640 n=12}
_{Bind Time}	_{0.114s (±10.07%)}	_{0.127s (±14.15%)}	_~	_0.099s	_0.172s	_{p=0.787 n=12}
_{Check Time}	_{10.797s (± 0.49%)}	_{10.284s (± 0.33%)}	_{🟩-0.513s (- 4.75%)}	_10.207s	_10.389s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{11.292s (± 0.52%)}	_{10.784s (± 0.27%)}	_{🟩-0.508s (- 4.50%)}	_10.691s	_10.857s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_231,617	_231,617	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,196	_181,196	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{193,532k (± 0.01%)}	_{193,544k (± 0.02%)}	_~	_193,487k	_193,697k	_{p=0.832 n=12}
_{Memory Allocs}	_{1,372,819 (± 0.02%)}	_{1,320,107 (± 0.02%)}	_{🟩-52,712 (- 3.84%)}	_1,319,654	_1,320,627	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.063s (± 3.72%)}	_{0.062s (± 4.53%)}	_~	_0.055s	_0.067s	_{p=0.764 n=12}
_{Bind Time}	_{0.028s (± 6.58%)}	_{0.027s (± 5.26%)}	_~	_0.022s	_0.030s	_{p=0.483 n=12}
_{Check Time}	_{0.433s (± 0.64%)}	_{0.423s (± 0.73%)}	_{-0.011s (- 2.48%)}	_0.416s	_0.432s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.534s (± 0.69%)}	_{0.520s (± 0.80%)}	_{-0.014s (- 2.54%)}	_0.509s	_0.529s	_{p=0.000 n=12}
_{vscode - native}
_Errors	₁₀	₁₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,332,462	_7,332,462	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,311,168	_4,311,168	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,099,170k (± 0.04%)}	_{5,098,593k (± 0.02%)}	_~	_5,096,384k	_5,101,491k	_{p=0.932 n=12}
_{Memory Allocs}	_{64,441,018 (± 0.03%)}	_{55,954,037 (± 0.01%)}	_{🟩-8,486,981 (-13.17%)}	_55,944,735	_55,971,163	_{p=0.000 n=12}
_{Config Time}	_{0.068s (± 0.48%)}	_{0.069s (± 0.73%)}	_~	_0.067s	_0.070s	_{p=1.000 n=12}
_{Parse Time}	_{1.293s (± 1.21%)}	_{1.210s (± 2.08%)}	_{🟩-0.083s (- 6.45%)}	_1.132s	_1.258s	_{p=0.000 n=12}
_{Bind Time}	_{0.394s (± 7.11%)}	_{0.435s (±14.15%)}	_~	_0.368s	_0.629s	_{p=0.190 n=12}
_{Check Time}	_{11.053s (± 0.58%)}	_{11.156s (± 0.34%)}	_{+0.103s (+ 0.93%)}	_11.068s	_11.269s	_{p=0.001 n=12}
_{Emit Time}	_{3.693s (± 4.50%)}	_{3.419s (± 7.36%)}	_{🟩-0.274s (- 7.41%)}	_3.140s	_4.108s	_{p=0.033 n=12}
_{Total Time}	_{16.571s (± 1.28%)}	_{16.356s (± 1.67%)}	_{-0.215s (- 1.30%)}	_15.974s	_17.048s	_{p=0.033 n=12}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_925,044	_925,044	_~	_~	_~	_{p=1.000 n=12}
_Types	_647,695	_647,695	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{697,581k (± 0.03%)}	_{697,577k (± 0.02%)}	_~	_697,340k	_698,057k	_{p=0.630 n=12}
_{Memory Allocs}	_{6,676,737 (± 0.02%)}	_{6,566,583 (± 0.02%)}	_{-110,154 (- 1.65%)}	_6,563,705	_6,571,823	_{p=0.000 n=12}
_{Config Time}	_{0.007s (± 5.39%)}	_{0.007s (± 5.59%)}	_~	_0.007s	_0.009s	_{p=0.932 n=12}
_{Parse Time}	_{0.207s (± 4.04%)}	_{0.202s (± 4.41%)}	_~	_0.185s	_0.228s	_{p=0.385 n=12}
_{Bind Time}	_{0.068s (±12.73%)}	_{0.062s (±11.81%)}	_~	_0.051s	_0.091s	_{p=0.213 n=12}
_{Check Time}	_{1.689s (± 0.75%)}	_{1.611s (± 0.85%)}	_{🟩-0.078s (- 4.63%)}	_1.580s	_1.651s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{2.006s (± 0.70%)}	_{1.920s (± 1.02%)}	_{🟩-0.086s (- 4.30%)}	_1.878s	_1.985s	_{p=0.000 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_640,494	_640,494	_~	_~	_~	_{p=1.000 n=12}
_Types	_387,992	_387,992	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{350,845k (± 0.03%)}	_{350,816k (± 0.02%)}	_~	_350,645k	_351,039k	_{p=0.887 n=12}
_{Memory Allocs}	_{4,063,633 (± 0.09%)}	_{3,980,333 (± 0.07%)}	_{-83,300 (- 2.05%)}	_3,974,805	_3,987,670	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.096s (± 4.63%)}	_{0.090s (± 3.41%)}	_{🟩-0.006s (- 6.52%)}	_0.082s	_0.099s	_{p=0.020 n=12}
_{Bind Time}	_{0.026s (± 8.96%)}	_{0.030s (±16.95%)}	_~	_0.023s	_0.046s	_{p=0.480 n=12}
_{Check Time}	_{0.611s (± 0.82%)}	_{0.642s (± 1.53%)}	_{🔻+0.032s (+ 5.17%)}	_0.615s	_0.677s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.741s (± 1.03%)}	_{0.769s (± 1.89%)}	_{+0.028s (+ 3.84%)}	_0.730s	_0.816s	_{p=0.001 n=12}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₁₂
_Baseline	_baseline	₁₂

Developer Information:

Download Benchmarks

Refresh training against the current compiler so the profile reflects recent checker and symbol-table optimizations.

The previous profile predates recent checker optimizations and lacks coverage of the newly added benchmark scenarios. Refresh the training corpus to cover Effect, TanStack Router, and decorator-heavy class-transformer alongside the existing workloads. Keep diagnostic reporting disabled so forced collections do not skew the CPU samples.

Jake Bailey (jakebailey) · 2026-10-28T07:11:36Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-28T07:11:41Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	👀 Results

typescript-automation · 2026-10-28T08:01:53Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

Provisional hosted-runner results: these VMs are not the dedicated benchmark machines. Results may be noisier and are not comparable to the historical series. For comparisons, both revisions of each scenario ran on the same VM.

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=12}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{104,150k (± 0.03%)}	_{104,114k (± 0.03%)}	_~	_104,038k	_104,202k	_{p=0.164 n=12}
_{Memory Allocs}	_{2,200,911 (± 0.00%)}	_{1,262,567 (± 0.01%)}	_{🟩-938,343 (-42.63%)}	_1,262,017	_1,262,893	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.023s (± 3.62%)}	_{0.021s (± 3.81%)}	_{🟩-0.001s (- 6.25%)}	_0.020s	_0.024s	_{p=0.014 n=12}
_{Bind Time}	_{0.009s (± 9.99%)}	_{0.009s (± 5.65%)}	_~	_0.008s	_0.010s	_{p=0.861 n=12}
_{Check Time}	_{0.234s (± 1.01%)}	_{0.222s (± 0.98%)}	_{🟩-0.012s (- 5.23%)}	_0.216s	_0.229s	_{p=0.000 n=12}
_{Emit Time}	_{0.160s (± 1.20%)}	_{0.146s (± 2.01%)}	_{🟩-0.014s (- 8.66%)}	_0.139s	_0.156s	_{p=0.000 n=12}
_{Total Time}	_{0.429s (± 0.95%)}	_{0.401s (± 1.09%)}	_{🟩-0.028s (- 6.47%)}	_0.394s	_0.417s	_{p=0.000 n=12}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_{586,603 (± 0.02%)}	_{586,481 (± 0.02%)}	_~	_586,222	_586,779	_{p=0.101 n=12}
_Types	_{241,693 (± 0.00%)}	_{241,694 (± 0.00%)}	_~	_241,690	_241,703	_{p=0.655 n=12}
_{Memory Used}	_{517,948k (± 0.03%)}	_{518,113k (± 0.02%)}	_{+165k (+ 0.03%)}	_517,874k	_518,385k	_{p=0.024 n=12}
_{Memory Allocs}	_{13,120,043 (± 0.10%)}	_{7,848,639 (± 0.08%)}	_{🟩-5,271,404 (-40.18%)}	_7,841,084	_7,879,813	_{p=0.000 n=12}
_{Config Time}	_0.009s	_{0.009s (± 2.00%)}	_~	_0.009s	_0.010s	_{p=1.000 n=12}
_{Parse Time}	_{0.136s (± 4.53%)}	_{0.126s (± 3.04%)}	_{🟩-0.009s (- 6.87%)}	_0.117s	_0.137s	_{p=0.016 n=12}
_{Bind Time}	_{0.040s (± 6.29%)}	_{0.045s (±14.61%)}	_{🔻+0.005s (+12.71%)}	_0.038s	_0.068s	_{p=0.047 n=12}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=12}
_{Emit Time}	_{0.915s (± 1.32%)}	_{0.859s (± 1.91%)}	_{🟩-0.056s (- 6.07%)}	_0.829s	_0.907s	_{p=0.000 n=12}
_{Total Time}	_{1.113s (± 1.09%)}	_{1.050s (± 1.89%)}	_{🟩-0.063s (- 5.67%)}	_1.020s	_1.108s	_{p=0.000 n=12}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_685,943	_685,943	_~	_~	_~	_{p=1.000 n=12}
_Types	_939,490	_939,490	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{497,248k (± 0.01%)}	_{497,313k (± 0.01%)}	_~	_497,095k	_497,444k	_{p=0.052 n=12}
_{Memory Allocs}	_{12,804,546 (± 0.01%)}	_{12,114,051 (± 0.02%)}	_{🟩-690,496 (- 5.39%)}	_12,110,647	_12,121,630	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.043s (± 4.96%)}	_{0.042s (± 3.02%)}	_~	_0.039s	_0.045s	_{p=0.414 n=12}
_{Bind Time}	_{0.013s (±14.38%)}	_{0.014s (±12.66%)}	_~	_0.011s	_0.020s	_{p=0.445 n=12}
_{Check Time}	_{0.980s (± 0.56%)}	_{0.962s (± 0.79%)}	_{-0.018s (- 1.85%)}	_0.946s	_0.986s	_{p=0.001 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.068s (± 0.31%)}	_{1.050s (± 0.60%)}	_{-0.018s (- 1.71%)}	_1.037s	_1.067s	_{p=0.000 n=12}
_{class-transformer - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_45,376	_45,376	_~	_~	_~	_{p=1.000 n=12}
_Types	_7,573	_7,573	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{27,845k (± 0.02%)}	_{27,835k (± 0.02%)}	_{-10k (- 0.04%)}	_27,818k	_27,845k	_{p=0.006 n=12}
_{Memory Allocs}	_{323,351 (± 0.05%)}	_{248,530 (± 0.06%)}	_{🟩-74,821 (-23.14%)}	_248,071	_249,058	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.009s (± 6.65%)}	_{0.009s (± 3.08%)}	_~	_0.009s	_0.010s	_{p=0.736 n=12}
_{Bind Time}	_{0.003s (±18.36%)}	_{0.003s (±14.42%)}	_~	_0.002s	_0.004s	_{p=0.386 n=12}
_{Check Time}	_{0.008s (± 5.31%)}	_{0.008s (± 5.05%)}	_~	_0.007s	_0.009s	_{p=0.699 n=12}
_{Emit Time}	_{0.010s (± 2.68%)}	_{0.008s (± 7.45%)}	_{🟩-0.002s (-15.83%)}	_0.007s	_0.010s	_{p=0.000 n=12}
_{Total Time}	_{0.031s (± 1.50%)}	_{0.029s (± 2.30%)}	_{🟩-0.002s (- 5.38%)}	_0.028s	_0.031s	_{p=0.001 n=12}
_{effect - native}
_Errors	₁₂	₁₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,235,117	_1,235,117	_~	_~	_~	_{p=1.000 n=12}
_Types	_894,115	_894,115	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{940,555k (± 0.03%)}	_{940,749k (± 0.02%)}	_~	_940,381k	_941,331k	_{p=0.266 n=12}
_{Memory Allocs}	_{15,751,436 (± 0.02%)}	_{12,639,252 (± 0.02%)}	_{🟩-3,112,184 (-19.76%)}	_12,632,278	_12,646,700	_{p=0.000 n=12}
_{Config Time}	_0.002s	_0.002s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.156s (± 1.49%)}	_{0.151s (± 3.10%)}	_{🟩-0.005s (- 3.41%)}	_0.141s	_0.167s	_{p=0.016 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.994s (± 1.23%)}	_{0.954s (± 1.11%)}	_{🟩-0.040s (- 4.06%)}	_0.918s	_0.980s	_{p=0.000 n=12}
_{Emit Time}	_{0.518s (± 1.51%)}	_{0.512s (± 2.31%)}	_~	_0.475s	_0.534s	_{p=0.639 n=12}
_{Total Time}	_{1.768s (± 0.75%)}	_{1.718s (± 1.27%)}	_{-0.050s (- 2.81%)}	_1.661s	_1.768s	_{p=0.001 n=12}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_3,784,027	_3,784,027	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,355,982	_1,355,982	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,835,990k (± 0.09%)}	_{1,836,335k (± 0.11%)}	_~	_1,830,522k	_1,839,385k	_{p=0.551 n=12}
_{Memory Allocs}	_{26,741,172 (± 0.10%)}	_{26,054,234 (± 0.08%)}	_{-686,938 (- 2.57%)}	_26,005,605	_26,114,524	_{p=0.000 n=12}
_{Config Time}	_0.008s	_{0.008s (± 2.25%)}	_~	_0.008s	_0.009s	_{p=1.000 n=12}
_{Parse Time}	_{0.286s (± 3.39%)}	_{0.283s (± 3.32%)}	_~	_0.271s	_0.316s	_{p=0.311 n=12}
_{Bind Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{3.250s (± 0.69%)}	_{3.040s (± 0.74%)}	_{🟩-0.210s (- 6.46%)}	_2.979s	_3.090s	_{p=0.000 n=12}
_{Emit Time}	_{0.244s (± 1.39%)}	_{0.242s (± 2.53%)}	_~	_0.232s	_0.271s	_{p=0.102 n=12}
_{Total Time}	_{4.264s (± 0.54%)}	_{4.057s (± 0.72%)}	_{🟩-0.207s (- 4.86%)}	_3.986s	_4.132s	_{p=0.000 n=12}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,793,249	_4,793,249	_~	_~	_~	_{p=1.000 n=12}
_Types	_2,607,051	_2,607,051	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,881,450k (± 0.05%)}	_{2,881,431k (± 0.05%)}	_~	_2,878,799k	_2,885,250k	_{p=0.932 n=12}
_{Memory Allocs}	_{75,933,076 (± 0.08%)}	_{75,286,130 (± 0.06%)}	_{-646,946 (- 0.85%)}	_75,171,177	_75,382,556	_{p=0.000 n=12}
_{Config Time}	_{0.025s (± 1.55%)}	_{0.025s (± 1.27%)}	_~	_0.025s	_0.026s	_{p=0.371 n=12}
_{Parse Time}	_{0.486s (± 2.28%)}	_{0.457s (± 2.18%)}	_{🟩-0.030s (- 6.13%)}	_0.430s	_0.478s	_{p=0.000 n=12}
_{Bind Time}	_{0.142s (± 9.40%)}	_{0.188s (±13.21%)}	_{🔻+0.046s (+32.59%)}	_0.144s	_0.244s	_{p=0.000 n=12}
_{Check Time}	_{6.891s (± 0.54%)}	_{6.636s (± 0.72%)}	_{🟩-0.256s (- 3.71%)}	_6.556s	_6.812s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{7.594s (± 0.38%)}	_{7.361s (± 0.47%)}	_{🟩-0.233s (- 3.07%)}	_7.303s	_7.494s	_{p=0.000 n=12}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,883,075	_1,883,075	_~	_~	_~	_{p=1.000 n=12}
_Types	_1,158,171	_1,158,171	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{972,713k (± 0.02%)}	_{972,402k (± 0.02%)}	_~	_971,752k	_972,979k	_{p=0.060 n=12}
_{Memory Allocs}	_{13,702,887 (± 0.13%)}	_{13,603,130 (± 0.17%)}	_{-99,756 (- 0.73%)}	_13,566,419	_13,659,331	_{p=0.000 n=12}
_{Config Time}	_0.008s	_0.008s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.158s (± 2.32%)}	_{0.162s (± 4.08%)}	_~	_0.147s	_0.175s	_{p=0.541 n=12}
_{Bind Time}	_{0.040s (±12.21%)}	_{0.051s (±11.76%)}	_{🔻+0.011s (+27.48%)}	_0.039s	_0.066s	_{p=0.001 n=12}
_{Check Time}	_{1.531s (± 0.51%)}	_{1.482s (± 0.46%)}	_{🟩-0.049s (- 3.19%)}	_1.461s	_1.495s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.754s (± 0.72%)}	_{1.723s (± 0.76%)}	_{-0.031s (- 1.74%)}	_1.686s	_1.750s	_{p=0.001 n=12}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_1,184,976	_1,184,976	_~	_~	_~	_{p=1.000 n=12}
_Types	_438,967	_438,967	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{1,172,557k (± 0.20%)}	_{1,167,481k (± 0.43%)}	_{-5,076k (- 0.43%)}	_1,152,335k	_1,184,773k	_{p=0.045 n=12}
_{Memory Allocs}	_{77,355,750 (± 0.13%)}	_{47,614,029 (± 0.13%)}	_{🟩-29,741,721 (-38.45%)}	_47,466,934	_47,764,365	_{p=0.000 n=12}
_{Config Time}	_{0.002s (± 8.72%)}	_{0.002s (±20.19%)}	_~	_0.001s	_0.003s	_{p=0.784 n=12}
_{Parse Time}	_{0.139s (± 1.49%)}	_{0.133s (± 1.90%)}	_{🟩-0.006s (- 4.32%)}	_0.125s	_0.138s	_{p=0.001 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.830s (± 0.48%)}	_{0.813s (± 0.78%)}	_{-0.017s (- 2.10%)}	_0.791s	_0.827s	_{p=0.000 n=12}
_{Emit Time}	_{0.175s (± 1.90%)}	_{0.140s (± 2.16%)}	_{🟩-0.035s (-19.71%)}	_0.133s	_0.153s	_{p=0.000 n=12}
_{Total Time}	_{10.013s (± 0.37%)}	_{9.422s (± 0.56%)}	_{🟩-0.591s (- 5.90%)}	_9.274s	_9.555s	_{p=0.000 n=12}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_263,513	_263,513	_~	_~	_~	_{p=1.000 n=12}
_Types	_196,118	_196,118	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{224,612k (± 0.03%)}	_{224,623k (± 0.02%)}	_~	_224,497k	_224,742k	_{p=0.810 n=12}
_{Memory Allocs}	_{4,304,398 (± 0.01%)}	_{2,394,411 (± 0.01%)}	_{🟩-1,909,986 (-44.37%)}	_2,393,702	_2,395,171	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.050s (± 3.74%)}	_{0.049s (± 4.14%)}	_~	_0.044s	_0.054s	_{p=0.448 n=12}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Check Time}	_{0.393s (± 0.83%)}	_{0.384s (± 1.83%)}	_{-0.008s (- 2.10%)}	_0.372s	_0.402s	_{p=0.029 n=12}
_{Emit Time}	_{0.077s (± 3.13%)}	_{0.048s (± 7.06%)}	_{🟩-0.029s (-38.10%)}	_0.042s	_0.056s	_{p=0.000 n=12}
_{Total Time}	_{0.550s (± 0.71%)}	_{0.509s (± 1.78%)}	_{🟩-0.041s (- 7.41%)}	_0.495s	_0.539s	_{p=0.000 n=12}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_4,350,705	_4,350,705	_~	_~	_~	_{p=1.000 n=12}
_Types	_3,040,691	_3,040,691	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{2,433,600k (± 0.03%)}	_{2,435,043k (± 0.04%)}	_{+1,443k (+ 0.06%)}	_2,433,454k	_2,438,741k	_{p=0.014 n=12}
_{Memory Allocs}	_{37,869,434 (± 0.06%)}	_{37,343,828 (± 0.04%)}	_{-525,607 (- 1.39%)}	_37,304,733	_37,381,019	_{p=0.000 n=12}
_{Config Time}	_0.003s	_0.003s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.271s (± 3.43%)}	_{0.252s (± 1.73%)}	_{🟩-0.019s (- 7.09%)}	_0.239s	_0.265s	_{p=0.001 n=12}
_{Bind Time}	_{0.079s (± 2.42%)}	_{0.079s (± 3.68%)}	_~	_0.076s	_0.092s	_{p=0.334 n=12}
_{Check Time}	_{7.631s (± 1.00%)}	_{7.194s (± 0.66%)}	_{🟩-0.437s (- 5.73%)}	_7.094s	_7.338s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{7.995s (± 0.99%)}	_{7.538s (± 0.63%)}	_{🟩-0.457s (- 5.71%)}	_7.437s	_7.687s	_{p=0.000 n=12}
_{tanstack-router - native}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_571,760	_571,760	_~	_~	_~	_{p=1.000 n=12}
_Types	_397,693	_397,693	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{331,393k (± 0.02%)}	_{331,385k (± 0.01%)}	_~	_331,282k	_331,526k	_{p=0.887 n=12}
_{Memory Allocs}	_{5,094,220 (± 0.11%)}	_{4,400,123 (± 0.40%)}	_{🟩-694,097 (-13.63%)}	_4,385,302	_4,485,663	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.041s (± 3.11%)}	_{0.041s (± 6.03%)}	_~	_0.035s	_0.046s	_{p=0.809 n=12}
_{Bind Time}	_{0.012s (± 3.39%)}	_{0.014s (±15.82%)}	_~	_0.012s	_0.021s	_{p=0.464 n=12}
_{Check Time}	_{0.610s (± 1.06%)}	_{0.592s (± 1.01%)}	_{-0.018s (- 2.95%)}	_0.580s	_0.614s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.690s (± 0.63%)}	_{0.669s (± 1.14%)}	_{🟩-0.021s (- 3.09%)}	_0.653s	_0.697s	_{p=0.000 n=12}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_231,617	_231,617	_~	_~	_~	_{p=1.000 n=12}
_Types	_181,196	_181,196	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{193,549k (± 0.02%)}	_{193,522k (± 0.02%)}	_~	_193,409k	_193,640k	_{p=0.409 n=12}
_{Memory Allocs}	_{1,373,126 (± 0.02%)}	_{1,322,082 (± 0.02%)}	_{🟩-51,044 (- 3.72%)}	_1,321,602	_1,322,685	_{p=0.000 n=12}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.043s (± 2.73%)}	_{0.041s (± 4.25%)}	_{🟩-0.003s (- 5.95%)}	_0.036s	_0.045s	_{p=0.015 n=12}
_{Bind Time}	_{0.022s (± 6.90%)}	_{0.021s (± 9.58%)}	_~	_0.017s	_0.028s	_{p=0.351 n=12}
_{Check Time}	_{0.308s (± 2.17%)}	_{0.298s (± 2.30%)}	_~	_0.285s	_0.318s	_{p=0.053 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.381s (± 1.52%)}	_{0.366s (± 1.84%)}	_{🟩-0.014s (- 3.74%)}	_0.349s	_0.387s	_{p=0.003 n=12}
_{vscode - native}
_Errors	₁₀	₁₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_7,331,315	_7,331,315	_~	_~	_~	_{p=1.000 n=12}
_Types	_4,311,190	_4,311,190	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{5,100,721k (± 0.02%)}	_{5,100,682k (± 0.02%)}	_~	_5,097,532k	_5,102,373k	_{p=0.755 n=12}
_{Memory Allocs}	_{64,433,862 (± 0.01%)}	_{56,021,536 (± 0.01%)}	_{🟩-8,412,326 (-13.06%)}	_56,006,236	_56,058,764	_{p=0.000 n=12}
_{Config Time}	_{0.034s (± 2.00%)}	_{0.034s (± 1.77%)}	_~	_0.033s	_0.036s	_{p=0.640 n=12}
_{Parse Time}	_{0.910s (± 1.09%)}	_{0.896s (± 3.43%)}	_{-0.013s (- 1.48%)}	_0.845s	_1.032s	_{p=0.028 n=12}
_{Bind Time}	_{0.315s (± 9.88%)}	_{0.295s (± 1.13%)}	_{🟩-0.020s (- 6.22%)}	_0.288s	_0.303s	_{p=0.037 n=12}
_{Check Time}	_{8.045s (± 0.65%)}	_{7.899s (± 0.53%)}	_{-0.145s (- 1.80%)}	_7.816s	_8.058s	_{p=0.001 n=12}
_{Emit Time}	_{2.938s (± 4.37%)}	_{2.638s (± 4.58%)}	_{🟩-0.300s (-10.22%)}	_2.530s	_3.096s	_{p=0.002 n=12}
_{Total Time}	_{12.300s (± 0.96%)}	_{11.818s (± 1.24%)}	_{🟩-0.482s (- 3.92%)}	_11.624s	_12.296s	_{p=0.001 n=12}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_925,044	_925,044	_~	_~	_~	_{p=1.000 n=12}
_Types	_647,695	_647,695	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{697,780k (± 0.02%)}	_{697,636k (± 0.02%)}	_~	_697,290k	_697,989k	_{p=0.114 n=12}
_{Memory Allocs}	_{6,680,750 (± 0.02%)}	_{6,568,944 (± 0.01%)}	_{-111,807 (- 1.67%)}	_6,566,479	_6,571,750	_{p=0.000 n=12}
_{Config Time}	_0.004s	_0.004s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.145s (± 4.39%)}	_{0.138s (± 3.53%)}	_~	_0.128s	_0.151s	_{p=0.065 n=12}
_{Bind Time}	_{0.048s (±16.26%)}	_{0.048s (±15.81%)}	_~	_0.038s	_0.073s	_{p=0.679 n=12}
_{Check Time}	_{1.214s (± 1.17%)}	_{1.133s (± 0.70%)}	_{🟩-0.080s (- 6.63%)}	_1.119s	_1.165s	_{p=0.000 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{1.434s (± 1.49%)}	_{1.347s (± 1.12%)}	_{🟩-0.087s (- 6.05%)}	_1.320s	_1.392s	_{p=0.000 n=12}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=12}
_Symbols	_640,494	_640,494	_~	_~	_~	_{p=1.000 n=12}
_Types	_387,992	_387,992	_~	_~	_~	_{p=1.000 n=12}
_{Memory Used}	_{350,874k (± 0.02%)}	_{350,953k (± 0.03%)}	_~	_350,760k	_351,446k	_{p=0.285 n=12}
_{Memory Allocs}	_{4,065,403 (± 0.10%)}	_{3,979,536 (± 0.07%)}	_{-85,867 (- 2.11%)}	_3,972,680	_3,989,309	_{p=0.000 n=12}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=12}
_{Parse Time}	_{0.061s (± 4.59%)}	_{0.060s (± 3.83%)}	_~	_0.054s	_0.066s	_{p=0.398 n=12}
_{Bind Time}	_{0.019s (±15.03%)}	_{0.021s (±16.81%)}	_~	_0.017s	_0.034s	_{p=0.109 n=12}
_{Check Time}	_{0.427s (± 2.44%)}	_{0.421s (± 1.98%)}	_~	_0.404s	_0.452s	_{p=0.434 n=12}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=12}
_{Total Time}	_{0.513s (± 2.21%)}	_{0.508s (± 1.84%)}	_~	_0.489s	_0.542s	_{p=0.619 n=12}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
class-transformer - native
effect - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
tanstack-router - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₁₂
_Baseline	_baseline	₁₂

Developer Information:

Download Benchmarks

Profiles were previously trained by hand on a local machine, which made them hard to reproduce or refresh. The benchmarking repo now generates the profile from the same compiler scenarios the perf bot measures, so take its output from a run against current main.

Jake Bailey (jakebailey) · 2026-10-28T20:43:55Z

TypeScript Bot (@typescript-bot) perf test this faster

typescript-automation · 2026-10-28T20:44:00Z

Starting jobs; this comment will be updated as builds start and complete.

Command	Status	Results
`perf test this faster`	✅ Started	👀 Results

typescript-automation · 2026-10-28T21:33:59Z

Jake Bailey (@jakebailey)
The results of the perf run you requested are in!

Here they are:

tsc

Comparison Report - baseline..pr

_Metric	_baseline	_pr	_Delta	_Best	_Worst	_p-value
_{Compiler-Unions - native}
_Errors	₄₁	₄₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_88,466	_88,466	_~	_~	_~	_{p=1.000 n=20}
_Types	_79,607	_79,607	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{104,147k (± 0.03%)}	_{104,151k (± 0.03%)}	_~	_104,028k	_104,273k	_{p=0.931 n=20}
_{Memory Allocs}	_{2,200,577 (± 0.00%)}	_{1,263,609 (± 0.01%)}	_{🟩-936,968 (-42.58%)}	_1,263,241	_1,264,066	_{p=0.000 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.024s (± 5.20%)}	_{0.021s (± 2.54%)}	_{🟩-0.003s (-11.46%)}	_0.019s	_0.023s	_{p=0.000 n=20}
_{Bind Time}	_{0.010s (±10.85%)}	_{0.008s (± 4.81%)}	_{🟩-0.001s (-15.38%)}	_0.007s	_0.010s	_{p=0.011 n=20}
_{Check Time}	_{0.239s (± 2.84%)}	_{0.213s (± 0.76%)}	_{🟩-0.026s (-10.90%)}	_0.206s	_0.221s	_{p=0.000 n=20}
_{Emit Time}	_{0.162s (± 2.14%)}	_{0.142s (± 1.21%)}	_{🟩-0.020s (-12.54%)}	_0.137s	_0.151s	_{p=0.000 n=20}
_{Total Time}	_{0.438s (± 2.61%)}	_{0.387s (± 0.73%)}	_{🟩-0.051s (-11.56%)}	_0.374s	_0.398s	_{p=0.000 n=20}
_{angular-1 - native}
_Errors	₃	₃	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_{586,483 (± 0.02%)}	_{586,507 (± 0.02%)}	_~	_586,192	_586,943	_{p=0.846 n=20}
_Types	_{241,688 (± 0.00%)}	_{241,687 (± 0.00%)}	_~	_241,683	_241,697	_{p=0.440 n=20}
_{Memory Used}	_{517,924k (± 0.01%)}	_{517,958k (± 0.02%)}	_~	_517,525k	_518,329k	_{p=0.482 n=20}
_{Memory Allocs}	_{13,115,322 (± 0.03%)}	_{7,801,539 (± 0.14%)}	_{🟩-5,313,783 (-40.52%)}	_7,786,691	_7,867,540	_{p=0.000 n=20}
_{Config Time}	_{0.009s (± 5.64%)}	_{0.009s (± 1.87%)}	_~	_0.009s	_0.010s	_{p=0.605 n=20}
_{Parse Time}	_{0.130s (± 3.22%)}	_{0.129s (± 4.10%)}	_~	_0.114s	_0.166s	_{p=0.614 n=20}
_{Bind Time}	_{0.050s (±10.23%)}	_{0.053s (±11.44%)}	_~	_0.040s	_0.080s	_{p=0.783 n=20}
_{Check Time}	_0s	_0s	_~	_~	_~	_{p=1.000 n=20}
_{Emit Time}	_{0.957s (± 2.39%)}	_{0.892s (± 1.75%)}	_{🟩-0.065s (- 6.78%)}	_0.852s	_0.986s	_{p=0.000 n=20}
_{Total Time}	_{1.159s (± 1.98%)}	_{1.096s (± 1.64%)}	_{🟩-0.062s (- 5.38%)}	_1.047s	_1.189s	_{p=0.000 n=20}
_{arktype - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_685,920	_685,920	_~	_~	_~	_{p=1.000 n=20}
_Types	_939,467	_939,467	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{497,248k (± 0.01%)}	_{497,268k (± 0.01%)}	_~	_497,096k	_497,579k	_{p=0.579 n=20}
_{Memory Allocs}	_{12,804,659 (± 0.01%)}	_{12,108,220 (± 0.01%)}	_{🟩-696,439 (- 5.44%)}	_12,103,238	_12,114,984	_{p=0.000 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.041s (± 2.72%)}	_{0.041s (± 2.89%)}	_~	_0.037s	_0.047s	_{p=0.867 n=20}
_{Bind Time}	_{0.013s (± 9.23%)}	_{0.012s (± 6.63%)}	_{🟩-0.001s (- 8.61%)}	_0.011s	_0.018s	_{p=0.028 n=20}
_{Check Time}	_{0.998s (± 0.52%)}	_{0.988s (± 0.67%)}	_{-0.010s (- 1.01%)}	_0.964s	_1.008s	_{p=0.029 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.085s (± 0.47%)}	_{1.071s (± 0.55%)}	_{-0.013s (- 1.24%)}	_1.052s	_1.089s	_{p=0.001 n=20}
_{class-transformer - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_45,376	_45,376	_~	_~	_~	_{p=1.000 n=20}
_Types	_7,573	_7,573	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{27,838k (± 0.02%)}	_{27,835k (± 0.02%)}	_~	_27,818k	_27,861k	_{p=0.116 n=20}
_{Memory Allocs}	_{323,288 (± 0.04%)}	_{248,526 (± 0.03%)}	_{🟩-74,762 (-23.13%)}	_248,032	_248,859	_{p=0.000 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.009s (± 2.24%)}	_{0.009s (± 2.34%)}	_{🟩-0.000s (- 3.78%)}	_0.008s	_0.010s	_{p=0.039 n=20}
_{Bind Time}	_{0.003s (±13.34%)}	_{0.003s (±13.12%)}	_~	_0.002s	_0.004s	_{p=0.777 n=20}
_{Check Time}	_{0.008s (± 5.35%)}	_{0.008s (± 3.78%)}	_~	_0.007s	_0.009s	_{p=0.840 n=20}
_{Emit Time}	_{0.010s (± 3.66%)}	_{0.008s (± 5.34%)}	_{🟩-0.001s (-15.10%)}	_0.007s	_0.010s	_{p=0.000 n=20}
_{Total Time}	_{0.031s (± 1.23%)}	_{0.029s (± 1.57%)}	_{🟩-0.002s (- 6.81%)}	_0.027s	_0.031s	_{p=0.000 n=20}
_{effect - native}
_Errors	₁₂	₁₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,235,115	_1,235,115	_~	_~	_~	_{p=1.000 n=20}
_Types	_894,113	_894,113	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{940,570k (± 0.02%)}	_{940,412k (± 0.02%)}	_~	_939,770k	_941,057k	_{p=0.265 n=20}
_{Memory Allocs}	_{15,751,999 (± 0.01%)}	_{12,670,061 (± 0.02%)}	_{🟩-3,081,939 (-19.57%)}	_12,660,856	_12,686,338	_{p=0.000 n=20}
_{Config Time}	_0.002s	_{0.002s (± 6.84%)}	_~	_0.002s	_0.003s	_{p=0.487 n=20}
_{Parse Time}	_{0.156s (± 1.89%)}	_{0.148s (± 1.45%)}	_{🟩-0.009s (- 5.44%)}	_0.139s	_0.157s	_{p=0.000 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.955s (± 0.75%)}	_{0.928s (± 0.67%)}	_{-0.027s (- 2.84%)}	_0.906s	_0.948s	_{p=0.000 n=20}
_{Emit Time}	_{0.524s (± 2.08%)}	_{0.500s (± 2.07%)}	_{🟩-0.025s (- 4.70%)}	_0.471s	_0.546s	_{p=0.002 n=20}
_{Total Time}	_{1.731s (± 0.60%)}	_{1.669s (± 0.59%)}	_{🟩-0.062s (- 3.57%)}	_1.627s	_1.720s	_{p=0.000 n=20}
_{mui-docs - native}
_Errors	_11,405	_11,405	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_3,784,019	_3,784,019	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,355,974	_1,355,974	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,837,525k (± 0.06%)}	_{1,837,046k (± 0.09%)}	_~	_1,829,164k	_1,843,077k	_{p=0.758 n=20}
_{Memory Allocs}	_{26,753,732 (± 0.06%)}	_{25,988,176 (± 0.11%)}	_{-765,557 (- 2.86%)}	_25,860,479	_26,134,573	_{p=0.000 n=20}
_{Config Time}	_{0.009s (± 1.61%)}	_0.009s	_~	_~	_~	_{p=0.487 n=20}
_{Parse Time}	_{0.305s (± 2.23%)}	_{0.310s (± 2.08%)}	_~	_0.284s	_0.349s	_{p=0.324 n=20}
_{Bind Time}	_0.001s	_{0.001s (±23.93%)}	_~	_0.001s	_0.003s	_{p=0.487 n=20}
_{Check Time}	_{3.384s (± 0.51%)}	_{3.211s (± 0.48%)}	_{🟩-0.173s (- 5.12%)}	_3.172s	_3.269s	_{p=0.000 n=20}
_{Emit Time}	_{0.261s (± 0.78%)}	_{0.254s (± 1.03%)}	_{-0.007s (- 2.53%)}	_0.245s	_0.262s	_{p=0.000 n=20}
_{Total Time}	_{4.459s (± 0.47%)}	_{4.298s (± 0.47%)}	_{🟩-0.161s (- 3.61%)}	_4.245s	_4.418s	_{p=0.000 n=20}
_{sentry - native}
_Errors	₂	₂	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,793,245	_4,793,245	_~	_~	_~	_{p=1.000 n=20}
_Types	_2,607,047	_2,607,047	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,880,506k (± 0.03%)}	_{2,880,400k (± 0.03%)}	_~	_2,878,209k	_2,885,974k	_{p=0.640 n=20}
_{Memory Allocs}	_{75,891,280 (± 0.07%)}	_{75,204,662 (± 0.17%)}	_{-686,617 (- 0.90%)}	_74,804,693	_75,917,241	_{p=0.000 n=20}
_{Config Time}	_{0.027s (± 1.19%)}	_{0.027s (± 0.91%)}	_~	_0.026s	_0.028s	_{p=0.369 n=20}
_{Parse Time}	_{0.509s (± 7.75%)}	_{0.502s (± 4.72%)}	_~	_0.450s	_0.630s	_{p=0.984 n=20}
_{Bind Time}	_{0.170s (±11.35%)}	_{0.176s (±10.66%)}	_~	_0.140s	_0.246s	_{p=0.256 n=20}
_{Check Time}	_{7.380s (± 1.11%)}	_{7.174s (± 0.85%)}	_{-0.206s (- 2.79%)}	_6.927s	_7.499s	_{p=0.000 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{8.139s (± 1.22%)}	_{7.932s (± 0.90%)}	_{-0.207s (- 2.55%)}	_7.672s	_8.302s	_{p=0.002 n=20}
_{social-app - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,883,074	_1,883,074	_~	_~	_~	_{p=1.000 n=20}
_Types	_1,158,170	_1,158,170	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{972,391k (± 0.01%)}	_{972,480k (± 0.02%)}	_~	_971,733k	_972,902k	_{p=0.208 n=20}
_{Memory Allocs}	_{13,699,413 (± 0.10%)}	_{13,567,039 (± 0.14%)}	_{-132,374 (- 0.97%)}	_13,519,912	_13,659,174	_{p=0.000 n=20}
_{Config Time}	_{0.008s (± 1.89%)}	_{0.008s (± 2.98%)}	_~	_0.008s	_0.010s	_{p=0.304 n=20}
_{Parse Time}	_{0.165s (± 3.37%)}	_{0.171s (± 4.81%)}	_~	_0.148s	_0.203s	_{p=0.351 n=20}
_{Bind Time}	_{0.045s (± 8.27%)}	_{0.052s (± 9.87%)}	_{🔻+0.007s (+15.47%)}	_0.041s	_0.077s	_{p=0.002 n=20}
_{Check Time}	_{1.697s (± 1.64%)}	_{1.681s (± 2.80%)}	_~	_1.537s	_1.824s	_{p=0.578 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.935s (± 1.64%)}	_{1.931s (± 2.69%)}	_~	_1.769s	_2.094s	_{p=0.805 n=20}
_{strada-build-src - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_1,184,972	_1,184,972	_~	_~	_~	_{p=1.000 n=20}
_Types	_438,963	_438,963	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{1,173,400k (± 0.34%)}	_{1,168,703k (± 0.37%)}	_{-4,697k (- 0.40%)}	_1,154,051k	_1,186,973k	_{p=0.038 n=20}
_{Memory Allocs}	_{77,405,015 (± 0.12%)}	_{47,722,634 (± 0.12%)}	_{🟩-29,682,381 (-38.35%)}	_47,463,855	_47,931,318	_{p=0.000 n=20}
_{Config Time}	_{0.002s (±12.21%)}	_{0.002s (± 8.97%)}	_~	_0.001s	_0.003s	_{p=0.730 n=20}
_{Parse Time}	_{0.140s (± 1.60%)}	_{0.134s (± 1.42%)}	_{🟩-0.007s (- 4.71%)}	_0.127s	_0.142s	_{p=0.000 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.846s (± 0.41%)}	_{0.820s (± 0.60%)}	_{🟩-0.026s (- 3.09%)}	_0.806s	_0.849s	_{p=0.000 n=20}
_{Emit Time}	_{0.180s (± 1.82%)}	_{0.141s (± 2.02%)}	_{🟩-0.038s (-21.36%)}	_0.133s	_0.157s	_{p=0.000 n=20}
_{Total Time}	_{10.204s (± 0.45%)}	_{9.459s (± 0.44%)}	_{🟩-0.744s (- 7.30%)}	_9.296s	_9.706s	_{p=0.000 n=20}
_{strada-compiler - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_263,511	_263,511	_~	_~	_~	_{p=1.000 n=20}
_Types	_196,116	_196,116	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{224,593k (± 0.02%)}	_{224,559k (± 0.02%)}	_~	_224,413k	_224,696k	_{p=0.176 n=20}
_{Memory Allocs}	_{4,303,994 (± 0.01%)}	_{2,401,015 (± 0.01%)}	_{🟩-1,902,979 (-44.21%)}	_2,400,104	_2,402,044	_{p=0.000 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.051s (± 4.24%)}	_{0.048s (± 3.08%)}	_{🟩-0.003s (- 5.80%)}	_0.043s	_0.054s	_{p=0.021 n=20}
_{Bind Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Check Time}	_{0.407s (± 1.09%)}	_{0.389s (± 1.63%)}	_{🟩-0.018s (- 4.48%)}	_0.376s	_0.439s	_{p=0.000 n=20}
_{Emit Time}	_{0.076s (± 2.37%)}	_{0.049s (± 4.99%)}	_{🟩-0.027s (-35.25%)}	_0.042s	_0.057s	_{p=0.000 n=20}
_{Total Time}	_{0.562s (± 1.17%)}	_{0.514s (± 1.41%)}	_{🟩-0.047s (- 8.44%)}	_0.497s	_0.569s	_{p=0.000 n=20}
_{t3code-server - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_4,350,661	_4,350,661	_~	_~	_~	_{p=1.000 n=20}
_Types	_3,040,647	_3,040,647	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{2,433,964k (± 0.03%)}	_{2,433,700k (± 0.02%)}	_~	_2,431,599k	_2,436,906k	_{p=0.659 n=20}
_{Memory Allocs}	_{37,884,196 (± 0.03%)}	_{37,379,265 (± 0.09%)}	_{-504,931 (- 1.33%)}	_37,305,838	_37,602,323	_{p=0.000 n=20}
_{Config Time}	_0.003s	_0.003s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.265s (± 1.80%)}	_{0.259s (± 5.18%)}	_{-0.006s (- 2.25%)}	_0.220s	_0.372s	_{p=0.007 n=20}
_{Bind Time}	_{0.084s (± 5.48%)}	_{0.085s (± 7.93%)}	_~	_0.077s	_0.134s	_{p=0.384 n=20}
_{Check Time}	_{7.879s (± 0.51%)}	_{7.441s (± 0.50%)}	_{🟩-0.438s (- 5.56%)}	_7.311s	_7.607s	_{p=0.000 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{8.241s (± 0.52%)}	_{7.799s (± 0.52%)}	_{🟩-0.442s (- 5.36%)}	_7.669s	_7.988s	_{p=0.000 n=20}
_{tanstack-router - native}
_Errors	₁	₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_571,756	_571,756	_~	_~	_~	_{p=1.000 n=20}
_Types	_397,689	_397,689	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{331,424k (± 0.02%)}	_{331,456k (± 0.01%)}	_~	_331,260k	_331,589k	_{p=0.365 n=20}
_{Memory Allocs}	_{5,093,364 (± 0.07%)}	_{4,387,795 (± 0.14%)}	_{🟩-705,569 (-13.85%)}	_4,375,913	_4,429,943	_{p=0.000 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.041s (± 4.06%)}	_{0.039s (± 3.51%)}	_~	_0.034s	_0.043s	_{p=0.143 n=20}
_{Bind Time}	_{0.013s (± 8.60%)}	_{0.013s (±10.08%)}	_~	_0.011s	_0.021s	_{p=0.197 n=20}
_{Check Time}	_{0.588s (± 1.00%)}	_{0.574s (± 0.83%)}	_{-0.015s (- 2.52%)}	_0.547s	_0.589s	_{p=0.000 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.669s (± 0.83%)}	_{0.645s (± 0.83%)}	_{🟩-0.024s (- 3.52%)}	_0.625s	_0.665s	_{p=0.000 n=20}
_{ts-pre-modules - native}
_Errors	₈₇	₈₇	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_231,616	_231,616	_~	_~	_~	_{p=1.000 n=20}
_Types	_181,195	_181,195	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{193,547k (± 0.01%)}	_{193,528k (± 0.01%)}	_~	_193,435k	_193,674k	_{p=0.199 n=20}
_{Memory Allocs}	_{1,373,330 (± 0.02%)}	_{1,317,978 (± 0.01%)}	_{🟩-55,353 (- 4.03%)}	_1,317,575	_1,319,115	_{p=0.000 n=20}
_{Config Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.045s (± 2.50%)}	_{0.042s (± 2.46%)}	_{🟩-0.002s (- 4.93%)}	_0.039s	_0.047s	_{p=0.006 n=20}
_{Bind Time}	_{0.023s (± 4.90%)}	_{0.022s (± 4.31%)}	_~	_0.017s	_0.024s	_{p=0.363 n=20}
_{Check Time}	_{0.330s (± 3.43%)}	_{0.310s (± 0.95%)}	_{🟩-0.020s (- 5.96%)}	_0.301s	_0.319s	_{p=0.000 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.403s (± 2.89%)}	_{0.380s (± 0.83%)}	_{🟩-0.023s (- 5.63%)}	_0.371s	_0.393s	_{p=0.000 n=20}
_{vscode - native}
_Errors	₁₁	₁₁	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_7,392,589	_7,392,589	_~	_~	_~	_{p=1.000 n=20}
_Types	_4,362,298	_4,362,298	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{5,145,940k (± 0.01%)}	_{5,146,366k (± 0.02%)}	_~	_5,143,350k	_5,150,642k	_{p=0.547 n=20}
_{Memory Allocs}	_{65,003,916 (± 0.00%)}	_{56,388,757 (± 0.02%)}	_{🟩-8,615,159 (-13.25%)}	_56,367,191	_56,443,325	_{p=0.000 n=20}
_{Config Time}	_{0.039s (± 0.92%)}	_{0.038s (± 0.91%)}	_{-0.001s (- 2.20%)}	_0.037s	_0.039s	_{p=0.002 n=20}
_{Parse Time}	_{0.948s (± 1.26%)}	_{0.920s (± 1.09%)}	_{-0.028s (- 2.95%)}	_0.891s	_0.970s	_{p=0.000 n=20}
_{Bind Time}	_{0.329s (± 1.28%)}	_{0.317s (± 1.73%)}	_{🟩-0.011s (- 3.46%)}	_0.296s	_0.334s	_{p=0.004 n=20}
_{Check Time}	_{8.421s (± 0.43%)}	_{8.157s (± 0.34%)}	_{🟩-0.264s (- 3.14%)}	_8.027s	_8.220s	_{p=0.000 n=20}
_{Emit Time}	_{2.942s (± 3.55%)}	_{2.701s (± 2.67%)}	_{🟩-0.241s (- 8.19%)}	_2.624s	_3.340s	_{p=0.000 n=20}
_{Total Time}	_{12.739s (± 0.62%)}	_{12.190s (± 0.52%)}	_{🟩-0.549s (- 4.31%)}	_11.988s	_12.676s	_{p=0.000 n=20}
_{webpack - native}
_Errors	₆₁₉	₆₁₉	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_917,280	_917,280	_~	_~	_~	_{p=1.000 n=20}
_Types	_632,992	_632,992	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{690,391k (± 0.02%)}	_{690,417k (± 0.01%)}	_~	_690,037k	_690,664k	_{p=0.351 n=20}
_{Memory Allocs}	_{6,604,963 (± 0.04%)}	_{6,485,443 (± 0.05%)}	_{-119,520 (- 1.81%)}	_6,480,613	_6,506,892	_{p=0.000 n=20}
_{Config Time}	_0.004s	_0.004s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.151s (± 6.30%)}	_{0.143s (± 4.06%)}	_~	_0.125s	_0.178s	_{p=0.279 n=20}
_{Bind Time}	_{0.048s (± 9.23%)}	_{0.046s (± 6.76%)}	_~	_0.038s	_0.062s	_{p=0.524 n=20}
_{Check Time}	_{1.189s (± 0.66%)}	_{1.110s (± 0.67%)}	_{🟩-0.079s (- 6.66%)}	_1.084s	_1.145s	_{p=0.000 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{1.415s (± 0.77%)}	_{1.327s (± 0.63%)}	_{🟩-0.089s (- 6.27%)}	_1.299s	_1.371s	_{p=0.000 n=20}
_{xstate-main - native}
_Errors	₀	₀	_~	_~	_~	_{p=1.000 n=20}
_Symbols	_640,490	_640,490	_~	_~	_~	_{p=1.000 n=20}
_Types	_387,988	_387,988	_~	_~	_~	_{p=1.000 n=20}
_{Memory Used}	_{350,922k (± 0.03%)}	_{350,947k (± 0.03%)}	_~	_350,511k	_351,732k	_{p=0.673 n=20}
_{Memory Allocs}	_{4,067,240 (± 0.08%)}	_{3,990,637 (± 0.10%)}	_{-76,603 (- 1.88%)}	_3,979,972	_4,008,673	_{p=0.000 n=20}
_{Config Time}	_0.001s	_0.001s	_~	_~	_~	_{p=1.000 n=20}
_{Parse Time}	_{0.069s (± 8.97%)}	_{0.064s (± 2.88%)}	_~	_0.058s	_0.072s	_{p=0.054 n=20}
_{Bind Time}	_{0.021s (± 6.00%)}	_{0.022s (± 8.97%)}	_~	_0.019s	_0.034s	_{p=0.159 n=20}
_{Check Time}	_{0.456s (± 2.05%)}	_{0.452s (± 1.42%)}	_~	_0.437s	_0.485s	_{p=0.551 n=20}
_{Emit Time}	_0.000s	_0.000s	_~	_~	_~	_{p=1.000 n=20}
_{Total Time}	_{0.552s (± 2.30%)}	_{0.545s (± 1.24%)}	_~	_0.526s	_0.577s	_{p=0.344 n=20}

System info unknown

Hosts

native

Scenarios

Compiler-Unions - native
angular-1 - native
arktype - native
class-transformer - native
effect - native
mui-docs - native
sentry - native
social-app - native
strada-build-src - native
strada-compiler - native
t3code-server - native
tanstack-router - native
ts-pre-modules - native
vscode - native
webpack - native
xstate-main - native

_Benchmark	_Name	_Iterations
_Current	_pr	₂₀
_Baseline	_baseline	₂₀

Developer Information:

Download Benchmarks

Daniel Rosenwasser (DanielRosenwasser) · 2026-10-28T21:37:13Z

Feels funny to commit in the pgo artifact but it makes sense.

Copilot AI balanced review requested due to automatic review settings October 27, 2026 21:46

github-project-automation Bot added this to PR Backlog Oct 27, 2026

typescript-automation Bot assigned Jake Bailey (jakebailey) Oct 27, 2026

github-project-automation Bot moved this to Not started in PR Backlog Oct 27, 2026

typescript-automation Bot added Author: Team For Uncommitted Bug PR for untriaged, rejected, closed or missing bug labels Oct 27, 2026

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Use runner temporary storage for Go test builds

4187e22

Coverage builds with PGO exhaust the default temporary filesystem quota on the Linux ARM64 runner. Use the runner's temporary storage so tests and benchmarks can retain PGO without running out of temporary space.

Jake Bailey (jakebailey) added 2 commits October 27, 2026 23:57

Merge main into pgo

67603e1

Refresh training against the current compiler so the profile reflects recent checker and symbol-table optimizations.

Jake Bailey (jakebailey) added the Domain: Performance Reports of unusually slow behavior label Oct 28, 2026

Merge remote-tracking branch 'upstream/main' into pgo

9926f68

Jake Bailey (jakebailey) enabled auto-merge October 28, 2026 21:36

Daniel Rosenwasser (DanielRosenwasser) reviewed Oct 28, 2026

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Daniel Rosenwasser (DanielRosenwasser) approved these changes Oct 28, 2026

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github-project-automation Bot moved this from Not started to Needs merge in PR Backlog Oct 28, 2026

Jake Bailey (jakebailey) added this pull request to the merge queue Oct 28, 2026

Merged via the queue into microsoft:main with commit 25f823d Oct 28, 2026
29 checks passed

Jake Bailey (jakebailey) deleted the pgo branch October 28, 2026 21:53

github-project-automation Bot moved this from Needs merge to Done in PR Backlog Oct 28, 2026

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PGO training

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