rust - https://github.com/rust-lang/rust

Age	Commit message (Collapse)	Author	Lines
2022-07-26	Optimized vec::IntoIter::next_chunk impl	The 8472	-0/+20
	``` test vec::bench_next_chunk ... bench: 696 ns/iter (+/- 22) x86_64v1, pr test vec::bench_next_chunk ... bench: 309 ns/iter (+/- 4) znver2, default test vec::bench_next_chunk ... bench: 17,272 ns/iter (+/- 117) znver2, pr test vec::bench_next_chunk ... bench: 211 ns/iter (+/- 3) ``` The znver2 default impl seems to be slow due to inlining decisions. It goes through `core::array::iter_next_chunk` which has a deeper call tree.
2022-05-02	Avoid use of `rand::thread_rng` in stdlib benchmarks	Thom Chiovoloni	-2/+2

2022-03-29	Add debug assertions to some unsafe functions	Ben Kimock	-2/+2
	These debug assertions are all implemented only at runtime using `const_eval_select`, and in the error path they execute `intrinsics::abort` instead of being a normal debug assertion to minimize the impact of these assertions on code size, when enabled. Of all these changes, the bounds checks for unchecked indexing are expected to be most impactful (case in point, they found a problem in rustc).
2021-12-04	update vec::retain benchmarks	The 8472	-2/+17
	Add `into_iter().filter().collect()` as a comparison point since it was reported to be faster than `retain`. Remove clone inside benchmark loop to reduce allocator noise.
2021-09-17	Add benchmark for Vec::retain	TennyZhuang	-0/+15

2021-07-24	implement fold() on array::IntoIter to improve flatten().collect() perf	The8472	-0/+6
	``` # old test vec::bench_flat_map_collect ... bench: 2,244,024 ns/iter (+/- 18,903) # new test vec::bench_flat_map_collect ... bench: 172,863 ns/iter (+/- 2,141) ```
2021-06-02	Update expressions where we can use array's IntoIterator implementation	Muhammad Mominul Huque	-8/+2

2021-05-19	remove InPlaceIterable marker from Peekable due to unsoundness	The8472	-1/+0
	The unsoundness is not in Peekable per se, it rather is due to the interaction between Peekable being able to hold an extra item and vec::IntoIter's clone implementation shortening the allocation. An alternative solution would be to change IntoIter's clone implementation to keep enough spare capacity available.
2021-03-25	Try to make Vec benchmarks only run code they are benchmarking	Ben Kimock	-68/+25
	Many of the Vec benchmarks assert what values should be produced by the benchmarked code. In some cases, these asserts dominate the runtime of the benchmarks they are in, causing the benchmarks to understate the impact of an optimization or regression.
2021-03-21	add transmute-via-iterators bench	The8472	-0/+16

2021-03-16	Vec::dedup optimization - add benches	Soveu	-0/+89

2020-09-29	Reorder benches const variable	Ivan Tham	-2/+2
	Move LEN so it is is read in order.
2020-09-25	Rust vec bench import specific rand::RngCore	Ivan Tham	-1/+1

2020-09-22	Liballoc bench vec use mem take not replace	Ivan Tham	-3/+3

2020-09-21	liballoc bench use imported path Bencher	Ivan Tham	-14/+14
	test is already in scope, no need to use the full path
2020-09-06	Clean up vec benches bench_in_place style	Ivan Tham	-22/+21

2020-09-03	fix benchmark compile errors	The8472	-12/+9

2020-09-03	add benchmark to cover in-place extend	The8472	-0/+14

2020-09-03	fix: bench didn't black_box its results	The8472	-3/+1

2020-09-03	bench larger allocations	The8472	-6/+6

2020-09-03	bench in-place zip	The8472	-0/+37

2020-09-03	exercise more of the in-place pipeline in the bench	The8472	-1/+8

2020-09-03	bench in-place collect of droppables	The8472	-0/+15

2020-09-03	cyclic in-place reuse bench	The8472	-0/+20

2020-09-03	return the things under test so they get black_box()'ed	The8472	-1/+10

2020-09-03	add benches from bluss' gists	The8472	-0/+104

2020-09-03	update benches	The8472	-3/+4

2020-09-03	bench	The8472	-1/+40

2020-08-20	Liballoc bench rename push_all extend_from_slice	Ivan Tham	-15/+15

2020-08-20	Remove duplicated alloc vec bench push_all_move	Ivan Tham	-49/+0
	push_all_move is the same as extend
2020-07-27	mv std libs to library/	mark	-0/+482