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The Go programming language
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Meng Zhuo ecb2f231fa runtime,sync: using fastrandn instead of modulo reduction 
fastrandn is ~50% faster than fastrand() % n.
`ack -v 'fastrand\(\)\s?\%'` finds all modulo on fastrand()

name              old time/op  new time/op  delta
Fastrandn/2       2.86ns ± 0%  1.59ns ± 0%  -44.35%  (p=0.000 n=9+10)
Fastrandn/3       2.87ns ± 1%  1.59ns ± 0%  -44.41%  (p=0.000 n=10+9)
Fastrandn/4       2.87ns ± 1%  1.58ns ± 1%  -45.10%  (p=0.000 n=10+10)
Fastrandn/5       2.86ns ± 1%  1.58ns ± 1%  -44.84%  (p=0.000 n=10+10)

Change-Id: Ic91f5ca9b9e3b65127bc34792b62fd64fbd13b5c
Reviewed-on: https://go-review.googlesource.com/c/go/+/353269
Trust: Meng Zhuo <mzh@golangcn.org>
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2021-10-07 14:01:52 +00:00
.github .github: update IRC server 2021-09-30 19:56:27 +00:00
api net/http: add Cookie.Valid method 2021-10-06 23:26:57 +00:00
doc cmd/go: add release note for 'go get' changes 2021-09-28 17:19:19 +00:00
lib/time
misc all: use bytes.Cut, strings.Cut 2021-10-06 15:53:04 +00:00
src runtime,sync: using fastrandn instead of modulo reduction 2021-10-07 14:01:52 +00:00
test test: skip endian inlining test on noopt builder 2021-10-07 00:39:17 +00:00
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README.md

The Go Programming Language

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