perf(fastrand): optimize Read

[zhangyunhao116]

Use wyrand, see https://github.com/wangyi-fudan/wyhash.

name                                old time/op  new time/op  delta
SingleCore/math/rand-Uint32()-16    10.8ns ± 0%  10.8ns ± 0%     ~     (p=0.913 n=7+10)
SingleCore/fast-rand-Uint32()-16    2.26ns ± 0%  2.25ns ± 0%     ~     (p=0.015 n=10+10)
SingleCore/math/rand-Uint64()-16    11.1ns ± 0%  11.1ns ± 0%     ~     (p=0.014 n=10+8)
SingleCore/fast-rand-Uint64()-16    5.03ns ± 0%  4.75ns ± 0%   -5.50%  (p=0.000 n=10+9)
SingleCore/math/rand-Read1000-16     682ns ± 0%   682ns ± 0%     ~     (p=0.927 n=10+10)
SingleCore/fast-rand-Read1000-16     298ns ± 1%   150ns ± 0%  -49.69%  (p=0.000 n=10+9)
MultipleCore/math/rand-Uint32()-16   114ns ± 3%   113ns ± 4%     ~     (p=0.306 n=10+10)
MultipleCore/fast-rand-Uint32()-16  0.18ns ± 1%  0.18ns ± 2%     ~     (p=0.006 n=9+10)
MultipleCore/math/rand-Uint64()-16   115ns ± 6%   118ns ± 3%     ~     (p=0.018 n=10+9)
MultipleCore/fast-rand-Uint64()-16  0.39ns ± 1%  0.38ns ± 0%   -1.55%  (p=0.000 n=10+8)
MultipleCore/math/rand-Read1000-16  1.02µs ± 3%  1.03µs ± 4%     ~     (p=0.644 n=10+10)
MultipleCore/fast-rand-Read1000-16   112ns ± 0%   102ns ± 1%   -9.38%  (p=0.000 n=10+10)

[github-actions]

Benchdiff

Runs: Benchdiff #33

Job is started.

[github-actions]

Benchdiff

Command: go test ./lang/fastrand -run '^$' -bench . -count 10 -benchtime 1s -cpu 4 -benchmem
HEAD: cf61946
Base: 1372042
Runs: Benchdiff #33
Degraded: true

Results

pkg: github.com/bytedance/gopkg/lang/fastrand
goos: linux
goarch: amd64

name	old time/op (ns/op)	±	new time/op (ns/op)	±	delta	±
SingleCore/math/rand-Uint32()-4	16.2022	0%	16.2062	0%	~	(p=0.487 n=9+8)
SingleCore/fast-rand-Uint32()-4	2.32233	0%	2.3941	0%	+3.09%	(p=0.000 n=9+10)
SingleCore/math/rand-Uint64()-4	17.1778	0%	17.17	0%	~	(p=0.206 n=9+9)
SingleCore/fast-rand-Uint64()-4	5.5175	0%	5.5178	0%	~	(p=0.144 n=8+10)
SingleCore/math/rand-Read1000-4	903.6	8%	886.21	0%	~	(p=0.068 n=9+10)
SingleCore/fast-rand-Read1000-4	398.975	1%	229.04	0%	-42.59%	(p=0.000 n=8+10)
MultipleCore/math/rand-Uint32()-4	75.482	2%	72.552	6%	-3.88%	(p=0.029 n=10+10)
MultipleCore/fast-rand-Uint32()-4	0.608738	0%	0.624056	0%	+2.52%	(p=0.000 n=8+9)
MultipleCore/math/rand-Uint64()-4	75.926	5%	75.779	3%	~	(p=0.631 n=10+10)
MultipleCore/fast-rand-Uint64()-4	1.40067	0%	1.40056	0%	~	(p=0.689 n=9+9)
MultipleCore/math/rand-Read1000-4	927.344	4%	933.65	3%	~	(p=0.150 n=9+10)
MultipleCore/fast-rand-Read1000-4	158.58	1%	247.25	2%	+55.91%	(p=0.000 n=10+10)

name	old alloc/op (B/op)	±	new alloc/op (B/op)	±	delta	±
SingleCore/math/rand-Uint32()-4	0		0		~	(all equal)
SingleCore/fast-rand-Uint32()-4	0		0		~	(all equal)
SingleCore/math/rand-Uint64()-4	0		0		~	(all equal)
SingleCore/fast-rand-Uint64()-4	0		0		~	(all equal)
SingleCore/math/rand-Read1000-4	0		0		~	(all equal)
SingleCore/fast-rand-Read1000-4	0		0		~	(all equal)
MultipleCore/math/rand-Uint32()-4	0		0		~	(all equal)
MultipleCore/fast-rand-Uint32()-4	0		0		~	(all equal)
MultipleCore/math/rand-Uint64()-4	0		0		~	(all equal)
MultipleCore/fast-rand-Uint64()-4	0		0		~	(all equal)
MultipleCore/math/rand-Read1000-4	0		0		~	(all equal)
MultipleCore/fast-rand-Read1000-4	0		0		~	(all equal)

name	old allocs/op (allocs/op)	±	new allocs/op (allocs/op)	±	delta	±
SingleCore/math/rand-Uint32()-4	0		0		~	(all equal)
SingleCore/fast-rand-Uint32()-4	0		0		~	(all equal)
SingleCore/math/rand-Uint64()-4	0		0		~	(all equal)
SingleCore/fast-rand-Uint64()-4	0		0		~	(all equal)
SingleCore/math/rand-Read1000-4	0		0		~	(all equal)
SingleCore/fast-rand-Read1000-4	0		0		~	(all equal)
MultipleCore/math/rand-Uint32()-4	0		0		~	(all equal)
MultipleCore/fast-rand-Uint32()-4	0		0		~	(all equal)
MultipleCore/math/rand-Uint64()-4	0		0		~	(all equal)
MultipleCore/fast-rand-Uint64()-4	0		0		~	(all equal)
MultipleCore/math/rand-Read1000-4	0		0		~	(all equal)
MultipleCore/fast-rand-Read1000-4	0		0		~	(all equal)

[PureWhiteWu]

要不 ci 顺便修一下？看起来加个 -y 就行了？

[SilverRainZ]

LGTM