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3a66bc415e
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Russ Cox 3a66bc415e runtime: use OS X vsyscall for gettimeofday (amd64) 
Thanks to Dave Cheney for the magic words "comm page".

benchmark       old ns/op    new ns/op    delta
BenchmarkNow          197           33  -83.05%

This should make profiling a little better on OS X.
The raw time saved is unlikely to matter: what likely matters
more is that it seems like OS X sends profiling signals on the
way out of system calls more often than it should; avoiding
the system call should increase the accuracy of cpu profiles.

The 386 version would be similar but needs to do different
math for CPU speeds less than 1 GHz. (Apparently Apple has
never shipped a 64-bit CPU with such a slow clock.)

R=golang-dev, bradfitz, dave, minux.ma, r
CC=golang-dev
https://golang.org/cl/6275056
2012-06-05 16:24:37 -04:00
api api: add Linux/ARM to go1 API 2012-06-04 15:21:58 +08:00
doc go spec: clarify promotion rules for methods/fields of anonymous fields 2012-06-04 14:24:10 -07:00
include build: remove unnecessary pragmas 2012-02-06 12:45:23 -05:00
lib codereview: support mercurial 2.2.1 2012-05-17 02:54:03 +08:00
misc cgo: enable cgo on netbsd/386 and netbsd/amd64 2012-06-05 01:43:04 +10:00
src runtime: use OS X vsyscall for gettimeofday (amd64) 2012-06-05 16:24:37 -04:00
test test: avoid interface conversion in rotate.go 2012-06-04 23:31:31 +02:00
.hgignore build: update Makefile to track source code dependencies better 2012-03-13 03:31:11 +08:00
.hgtags re-tag go1.0.1 2012-04-26 12:51:55 -07:00
AUTHORS A+C: add Mats Lidell. He signed the agreement with the Sweden email 2012-05-30 14:38:40 -04:00
CONTRIBUTORS CONTRIBUTORS: Add Ryan Barrett (Google CLA) 2012-05-31 16:51:49 -04:00
favicon.ico
LICENSE doc: update licensing text one more time 2012-03-27 15:09:13 +11:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

README 

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

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 README).  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.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 doc/install.html for more details.