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1e50dd02a9
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Martin Möhrmann 1e50dd02a9 runtime: use multiplication with overflow check for newarray 
This improves performance for e.g. maps with a bucket size
(key+value*8 bytes) larger than 32 bytes and removes loading
a value from the maxElems array for smaller bucket sizes.

name                old time/op  new time/op  delta
MakeMap/[Byte]Byte  95.5ns ± 1%  94.7ns ± 1%  -0.78%  (p=0.013 n=9+9)
MakeMap/[Int]Int     128ns ± 0%   121ns ± 2%  -5.63%  (p=0.000 n=6+10)

Updates #21588

Change-Id: I7d9eb7d49150c399c15dcab675e24bc97ff97852
Reviewed-on: https://go-review.googlesource.com/c/143997
Reviewed-by: Keith Randall <khr@golang.org>
2018-10-23 16:48:01 +00:00
.github .github: use HTTPS for Stack Overflow link in SUPPORT.md 2018-06-12 11:08:14 +00:00
api syscall: FreeBSD 12 ino64 support 2018-10-05 21:38:13 +00:00
doc doc: use the new log functions 2018-10-22 19:57:05 +00:00
lib/time lib/time: update vendored tzdata to release 2018e 2018-06-11 14:47:06 +00:00
misc internal/traceparser: provide parser that uses less space and parses segments of runtime trace files 2018-10-23 14:00:14 +00:00
src runtime: use multiplication with overflow check for newarray 2018-10-23 16:48:01 +00:00
test cmd/compile: use proved bounds to remove signed division fix-ups 2018-10-23 02:29:44 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: add VMware as author, Venil Noronha as contributor 2018-08-31 02:14:24 +00:00
CONTRIBUTING.md all: restore changes from faulty merge/revert 2018-02-12 20:13:59 +00:00
CONTRIBUTORS A+C: add VMware as author, Venil Noronha as contributor 2018-08-31 02:14:24 +00:00
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README.md README: linkify some paths 2018-06-06 18:07:01 +00:00
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README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

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