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| 1 | +#include "ledger/SharedModuleCacheCompiler.h" |
| 2 | +#include "bucket/SearchableBucketList.h" |
| 3 | +#include "crypto/Hex.h" |
| 4 | +#include "crypto/SHA.h" |
| 5 | +#include "main/Application.h" |
| 6 | +#include "rust/RustBridge.h" |
| 7 | +#include "util/Logging.h" |
| 8 | +#include <chrono> |
| 9 | + |
| 10 | +using namespace stellar; |
| 11 | + |
| 12 | +SharedModuleCacheCompiler::SharedModuleCacheCompiler( |
| 13 | + Application& app, rust_bridge::SorobanModuleCache& moduleCache, |
| 14 | + std::vector<uint32_t> const& ledgerVersions) |
| 15 | + : mApp(app) |
| 16 | + , mModuleCache(moduleCache) |
| 17 | + , mSnap(app.getBucketManager() |
| 18 | + .getBucketSnapshotManager() |
| 19 | + .copySearchableLiveBucketListSnapshot()) |
| 20 | + , mNumThreads( |
| 21 | + static_cast<size_t>(std::max(2, app.getConfig().WORKER_THREADS) - 1)) |
| 22 | + , mLedgerVersions(ledgerVersions) |
| 23 | +{ |
| 24 | +} |
| 25 | + |
| 26 | +void |
| 27 | +SharedModuleCacheCompiler::pushWasm(xdr::xvector<uint8_t> const& vec) |
| 28 | +{ |
| 29 | + std::unique_lock<std::mutex> lock(mMutex); |
| 30 | + mHaveSpace.wait( |
| 31 | + lock, [&] { return mBytesLoaded - mBytesCompiled < MAX_MEM_BYTES; }); |
| 32 | + xdr::xvector<uint8_t> buf(vec); |
| 33 | + auto size = buf.size(); |
| 34 | + mWasms.emplace_back(std::move(buf)); |
| 35 | + mBytesLoaded += size; |
| 36 | + lock.unlock(); |
| 37 | + mHaveContracts.notify_all(); |
| 38 | + LOG_INFO(DEFAULT_LOG, "Loaded contract with {} bytes of wasm code", size); |
| 39 | +} |
| 40 | + |
| 41 | +bool |
| 42 | +SharedModuleCacheCompiler::isFinishedCompiling( |
| 43 | + std::unique_lock<std::mutex>& lock) |
| 44 | +{ |
| 45 | + releaseAssert(lock.owns_lock()); |
| 46 | + return mLoadedAll && mBytesCompiled == mBytesLoaded; |
| 47 | +} |
| 48 | + |
| 49 | +void |
| 50 | +SharedModuleCacheCompiler::setFinishedLoading() |
| 51 | +{ |
| 52 | + std::unique_lock lock(mMutex); |
| 53 | + mLoadedAll = true; |
| 54 | + lock.unlock(); |
| 55 | + mHaveContracts.notify_all(); |
| 56 | +} |
| 57 | + |
| 58 | +bool |
| 59 | +SharedModuleCacheCompiler::popAndCompileWasm(size_t thread, |
| 60 | + std::unique_lock<std::mutex>& lock) |
| 61 | +{ |
| 62 | + |
| 63 | + releaseAssert(lock.owns_lock()); |
| 64 | + |
| 65 | + // Wait for a new contract to compile (or being done). |
| 66 | + mHaveContracts.wait( |
| 67 | + lock, [&] { return !mWasms.empty() || isFinishedCompiling(lock); }); |
| 68 | + |
| 69 | + // Check to see if we were woken up due to end-of-compilation. |
| 70 | + if (isFinishedCompiling(lock)) |
| 71 | + { |
| 72 | + return false; |
| 73 | + } |
| 74 | + |
| 75 | + xdr::xvector<uint8_t> wasm = std::move(mWasms.front()); |
| 76 | + mWasms.pop_front(); |
| 77 | + |
| 78 | + // Make a local shallow copy of the cache, so we don't race on the |
| 79 | + // shared host. |
| 80 | + auto cache = mModuleCache.shallow_clone(); |
| 81 | + |
| 82 | + lock.unlock(); |
| 83 | + |
| 84 | + auto start = std::chrono::steady_clock::now(); |
| 85 | + auto slice = rust::Slice<const uint8_t>(wasm.data(), wasm.size()); |
| 86 | + try |
| 87 | + { |
| 88 | + for (auto ledgerVersion : mLedgerVersions) |
| 89 | + { |
| 90 | + cache->compile(ledgerVersion, slice); |
| 91 | + } |
| 92 | + } |
| 93 | + catch (std::exception const& e) |
| 94 | + { |
| 95 | + LOG_ERROR(DEFAULT_LOG, "Thread {} failed to compile wasm code: {}", |
| 96 | + thread, e.what()); |
| 97 | + } |
| 98 | + auto end = std::chrono::steady_clock::now(); |
| 99 | + auto dur_us = |
| 100 | + std::chrono::duration_cast<std::chrono::microseconds>(end - start); |
| 101 | + LOG_INFO(DEFAULT_LOG, "Thread {} compiled {} byte wasm contract {} in {}us", |
| 102 | + thread, wasm.size(), binToHex(sha256(wasm)), dur_us.count()); |
| 103 | + lock.lock(); |
| 104 | + mTotalCompileTime += dur_us; |
| 105 | + mBytesCompiled += wasm.size(); |
| 106 | + wasm.clear(); |
| 107 | + mHaveSpace.notify_all(); |
| 108 | + mHaveContracts.notify_all(); |
| 109 | + return true; |
| 110 | +} |
| 111 | + |
| 112 | +void |
| 113 | +SharedModuleCacheCompiler::run() |
| 114 | +{ |
| 115 | + auto self = shared_from_this(); |
| 116 | + auto start = std::chrono::steady_clock::now(); |
| 117 | + LOG_INFO(DEFAULT_LOG, |
| 118 | + "Launching 1 loading and {} compiling background threads", |
| 119 | + mNumThreads); |
| 120 | + mApp.postOnBackgroundThread( |
| 121 | + [self]() { |
| 122 | + self->mSnap->scanForContractCode([&](LedgerEntry const& entry) { |
| 123 | + self->pushWasm(entry.data.contractCode().code); |
| 124 | + return Loop::INCOMPLETE; |
| 125 | + }); |
| 126 | + self->setFinishedLoading(); |
| 127 | + }, |
| 128 | + "contract loading thread"); |
| 129 | + |
| 130 | + for (auto thread = 0; thread < self->mNumThreads; ++thread) |
| 131 | + { |
| 132 | + mApp.postOnBackgroundThread( |
| 133 | + [self, thread]() { |
| 134 | + size_t nContractsCompiled = 0; |
| 135 | + std::unique_lock<std::mutex> lock(self->mMutex); |
| 136 | + while (!self->isFinishedCompiling(lock)) |
| 137 | + { |
| 138 | + if (self->popAndCompileWasm(thread, lock)) |
| 139 | + { |
| 140 | + ++nContractsCompiled; |
| 141 | + } |
| 142 | + } |
| 143 | + LOG_INFO(DEFAULT_LOG, "Thread {} compiled {} contracts", thread, |
| 144 | + nContractsCompiled); |
| 145 | + }, |
| 146 | + fmt::format("compilation thread {}", thread)); |
| 147 | + } |
| 148 | + |
| 149 | + std::unique_lock lock(self->mMutex); |
| 150 | + self->mHaveContracts.wait( |
| 151 | + lock, [self, &lock] { return self->isFinishedCompiling(lock); }); |
| 152 | + |
| 153 | + auto end = std::chrono::steady_clock::now(); |
| 154 | + LOG_INFO(DEFAULT_LOG, |
| 155 | + "All contracts compiled in {}ms real time, {}ms CPU time", |
| 156 | + std::chrono::duration_cast<std::chrono::milliseconds>(end - start) |
| 157 | + .count(), |
| 158 | + std::chrono::duration_cast<std::chrono::milliseconds>( |
| 159 | + self->mTotalCompileTime) |
| 160 | + .count()); |
| 161 | +} |
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