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Austin Clements 3b3d58e119 runtime: remove workbuf logging Early in Go 1.5 we had bugs with ownership of workbufs, so we added a system for tracing their ownership to help debug these issues. However, this system has both CPU and space overhead even when disabled, it clutters up the workbuf API, the higher level gcWork abstraction makes it very difficult to mess up the ownership of workbufs in practice, and the tracing hasn't been enabled or needed since `5b66e5d` nine months ago. Hence, remove it. Benchmarks show the usual noise from changes at this level, but little overall movement. name old time/op new time/op delta XBenchGarbage-12 2.48ms ± 1% 2.47ms ± 0% -0.68% (p=0.000 n=21+21) name old time/op new time/op delta BinaryTree17-12 2.98s ± 7% 2.98s ± 6% ~ (p=0.799 n=20+20) Fannkuch11-12 2.61s ± 3% 2.55s ± 5% -2.55% (p=0.003 n=20+20) FmtFprintfEmpty-12 52.8ns ± 6% 53.6ns ± 6% ~ (p=0.228 n=20+20) FmtFprintfString-12 177ns ± 4% 177ns ± 4% ~ (p=0.280 n=20+20) FmtFprintfInt-12 162ns ± 5% 162ns ± 3% ~ (p=0.347 n=20+20) FmtFprintfIntInt-12 277ns ± 7% 273ns ± 4% -1.62% (p=0.005 n=20+20) FmtFprintfPrefixedInt-12 237ns ± 4% 242ns ± 4% +2.13% (p=0.005 n=20+20) FmtFprintfFloat-12 315ns ± 4% 312ns ± 4% -0.97% (p=0.001 n=20+20) FmtManyArgs-12 1.11µs ± 3% 1.15µs ± 4% +3.41% (p=0.004 n=20+20) GobDecode-12 8.50ms ± 7% 8.53ms ± 7% ~ (p=0.429 n=20+20) GobEncode-12 6.86ms ± 9% 6.93ms ± 7% +0.93% (p=0.030 n=20+20) Gzip-12 326ms ± 4% 329ms ± 4% +0.98% (p=0.020 n=20+20) Gunzip-12 43.3ms ± 3% 43.8ms ± 9% +1.25% (p=0.003 n=20+20) HTTPClientServer-12 72.0µs ± 3% 71.5µs ± 3% ~ (p=0.053 n=20+20) JSONEncode-12 17.0ms ± 6% 17.3ms ± 7% +1.32% (p=0.006 n=20+20) JSONDecode-12 64.2ms ± 4% 63.5ms ± 3% -1.05% (p=0.005 n=20+20) Mandelbrot200-12 4.00ms ± 3% 3.99ms ± 3% ~ (p=0.121 n=20+20) GoParse-12 3.74ms ± 5% 3.75ms ± 9% ~ (p=0.383 n=20+20) RegexpMatchEasy0_32-12 104ns ± 4% 104ns ± 6% ~ (p=0.392 n=20+20) RegexpMatchEasy0_1K-12 358ns ± 3% 361ns ± 4% +0.95% (p=0.003 n=20+20) RegexpMatchEasy1_32-12 86.3ns ± 5% 86.1ns ± 6% ~ (p=0.614 n=20+20) RegexpMatchEasy1_1K-12 523ns ± 4% 518ns ± 3% -1.14% (p=0.008 n=20+20) RegexpMatchMedium_32-12 137ns ± 3% 134ns ± 4% -1.90% (p=0.005 n=20+20) RegexpMatchMedium_1K-12 41.0µs ± 3% 40.6µs ± 4% -1.11% (p=0.004 n=20+20) RegexpMatchHard_32-12 2.13µs ± 4% 2.11µs ± 5% -1.31% (p=0.014 n=20+20) RegexpMatchHard_1K-12 64.1µs ± 3% 63.2µs ± 5% -1.38% (p=0.005 n=20+20) Revcomp-12 555ms ±10% 548ms ± 7% -1.17% (p=0.011 n=20+20) Template-12 84.2ms ± 5% 88.2ms ± 4% +4.73% (p=0.000 n=20+20) TimeParse-12 365ns ± 4% 371ns ± 5% +1.77% (p=0.002 n=20+20) TimeFormat-12 361ns ± 4% 365ns ± 3% +1.08% (p=0.002 n=20+20) [Geo mean] 64.7µs 64.8µs +0.19% Change-Id: Ib043a7a0d18b588b298873d60913d44cd19f3b44 Reviewed-on: https://go-review.googlesource.com/19887 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Rick Hudson <rlh@golang.org>		2016-02-26 15:14:32 +00:00
.github	doc: add issue and pull request templates	2016-02-26 03:16:55 +00:00
api	go/types: rename Importer2 to ImporterFrom	2016-01-13 23:40:13 +00:00
doc	doc/go1.7: mention CallersFrames and Frames	2016-02-25 19:44:56 +00:00
lib/time	misc: update timezone database to IANA 2016a	2016-02-03 03:14:59 +00:00
misc	cmd/dist: don't run fortran test if fortran compilation fails	2016-02-25 23:52:28 +00:00
src	runtime: remove workbuf logging	2016-02-26 15:14:32 +00:00
test	cmd/compile: towards simpler and faster lexing: always use getr	2016-02-24 04:36:25 +00:00
.gitattributes
.gitignore	.gitignore: ignore src/go/build/zcgo.go	2016-02-24 04:25:46 +00:00
AUTHORS	A+C: manual updates	2016-01-08 06:02:39 +00:00
CONTRIBUTING.md
CONTRIBUTORS	A+C: manual updates	2016-01-08 06:02:39 +00:00
favicon.ico
LICENSE
PATENTS
README.md	readme: emphasize issue tracker is for bugs/proposals	2015-10-02 18:44:14 +00:00
robots.txt

README.md

The Go Programming Language

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If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:

export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin

See https://golang.org/doc/install or doc/install.html for more details.