Use criterion for benchmarks

Finish benchmarking transition to criterion.rs

Put real_blackbox behind nightly, ensure 1.19

Fix TODOs

Try with 1.20

Try 1.21

Give up

.gitignore

@@ -1,6 +1,7 @@
 # Generated by Cargo
 /target/
 Cargo.lock
+.criterion
 
 # Generated by mdbook
 /book/book/

.travis.yml

@@ -1,6 +1,7 @@
 language: rust
 rust:
 - nightly
+- beta
 - stable
 
 cache:
@@ -16,8 +17,8 @@ before_script:
 - export PATH="$PATH:$HOME/.cargo/bin"
 
 script:
-- cargo build --features="common,serde,rudy" --verbose
-- cargo test --features="common,serde,rudy" --verbose
+- cargo build --verbose --features "common serde rudy"
+- cargo test --verbose --features "common serde rudy"
 - if [ "$TRAVIS_RUST_VERSION" == "nightly" ]; then
     cargo build --all-features --verbose;
     cargo test --all-features --verbose;

Cargo.toml

@@ -44,6 +44,7 @@ features = ["common", "serde"]
 
 [dev-dependencies]
 cgmath =  { version = "0.14", features = ["eders"] }
+criterion = "0.2"
 ron = "0.1.3"
 rand = "0.3"
 serde_json = "1.0"
@@ -79,6 +80,16 @@ required-features = ["serde"]
 name = "saveload"
 required-features = ["serde"]
 
+[[bench]]
+name = "benches_main"
+harness = false
+
+[[bench]]
+name = "parallel"
+
+[[bench]]
+name = "world"
+harness = false
+
 [workspace]
 members = ["specs-derive"]
-

README.md

@@ -35,6 +35,8 @@ Unlike most other ECS libraries out there, it provides
       other and you can use barriers to force several stages in system execution
 * high performance for real-world applications
 
+Minimum Rust version: 1.21
+
 ## [Link to the book][book]
 
 [book]: https://slide-rs.github.io/specs/

benches/benches_main.rs

@@ -0,0 +1,26 @@
+#![feature(test)]
+
+#[macro_use]
+extern crate criterion;
+extern crate specs;
+extern crate test;
+
+macro_rules! group {
+    ($name:ident,$($benches:path),*) => {
+        pub fn $name(c: &mut Criterion) {
+            $(
+                $benches(c);
+            )*
+        }
+    };
+}
+
+mod storage_cmp;
+mod storage_sparse;
+
+pub use test::black_box;
+
+use storage_cmp::benches_storages;
+use storage_sparse::benches_sparse;
+
+criterion_main!(benches_storages, benches_sparse);