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Commit Graph

8 Commits

Author SHA1 Message Date
Dmitriy Vyukov
b2e9ca7f2e doc: add race detector manual
R=minux.ma, franciscossouza, rsc, adg, adg
CC=golang-dev
https://golang.org/cl/6948043
2013-01-02 16:38:47 +04:00
Shenghou Ma
7777bac6e4 runtime: use clock_gettime to get ns resolution for time.now & runtime.nanotime
For Linux/{386,arm}, FreeBSD/{386,amd64,arm}, NetBSD/{386,amd64}, OpenBSD/{386,amd64}.
Note: our Darwin implementation already has ns resolution.

Linux/386 (Core i7-2600 @ 3.40GHz, kernel 3.5.2-gentoo)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          110          118   +7.27%

Linux/ARM (ARM Cortex-A8 @ 800MHz, kernel 2.6.32.28 android)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          625          542  -13.28%

Linux/ARM (ARM Cortex-A9 @ 1GHz, Pandaboard)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          992          909   -8.37%

FreeBSD 9-REL-p1/amd64 (Dell R610 Server with Xeon X5650 @ 2.67GHz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          699          695   -0.57%

FreeBSD 9-REL-p1/amd64 (Atom D525 @ 1.80GHz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow         1553         1658   +6.76%

OpenBSD/amd64 (Dell E6410 with i5 CPU M 540 @ 2.53GHz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow         1262         1236   -2.06%

OpenBSD/i386 (Asus eeePC 701 with Intel Celeron M 900MHz - locked to 631MHz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow         5089         5043   -0.90%

NetBSD/i386 (VMware VM with Core i5 CPU @ 2.7GHz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          277          278   +0.36%

NetBSD/amd64 (VMware VM with Core i5 CPU @ 2.7Ghz)
benchmark       old ns/op    new ns/op    delta
BenchmarkNow          103          105   +1.94%

Thanks Maxim Khitrov, Joel Sing, and Dave Cheney for providing benchmark data.

R=jsing, dave, rsc
CC=golang-dev
https://golang.org/cl/6820120
2012-12-18 22:57:25 +08:00
Mikio Hara
0d197251ee net: change ListenUnixgram signature to return UnixConn instead of UDPConn
This CL breaks Go 1 API compatibility but it doesn't matter because
previous ListenUnixgram doesn't work in any use cases, oops.

The public API change is:
-pkg net, func ListenUnixgram(string, *UnixAddr) (*UDPConn, error)
+pkg net, func ListenUnixgram(string, *UnixAddr) (*UnixConn, error)

Fixes #3875.

R=rsc, golang-dev, dave
CC=golang-dev
https://golang.org/cl/6937059
2012-12-16 11:51:47 +09:00
Russ Cox
014137c839 doc/go1.1.html: add warning about net.ResolveTCPAddr error checking
Suggested by Paul Borman.

R=golang-dev, mikioh.mikioh
CC=golang-dev
https://golang.org/cl/6930043
2012-12-10 18:08:07 -05:00
Russ Cox
00cd6a3be3 time: add Round and Truncate
New in Go 1 will be nanosecond precision in the result of time.Now on Linux.
This will break code that stores time in external formats at microsecond
precision, reads it back, and expects to get exactly the same time.

Code like that can be fixed by using time.Now().Round(time.Microsecond)
instead of time.Now() in those contexts.

R=golang-dev, bradfitz, iant, remyoudompheng
CC=golang-dev
https://golang.org/cl/6903050
2012-12-09 03:59:33 -05:00
Joel Sing
76689845e3 debug/elf: do not skip first symbol in the symbol table
Do not skip the first symbol in the symbol table. Any other indexes
into the symbol table (for example, indexes in relocation entries)
will now refer to the symbol following the one that was intended.

Add an object that contains debug relocations, which debug/dwarf
failed to decode correctly. Extend the relocation tests to cover
this case.

Note that the existing tests passed since the symbol following the
symbol that required relocation is also of type STT_SECTION.

Fixes #4107.

R=golang-dev, mikioh.mikioh, iant, iant
CC=golang-dev
https://golang.org/cl/6848044
2012-11-15 02:24:14 +11:00
Francisco Souza
3c9eb5b48e doc/go1.1: fix metadata json format
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6570054
2012-09-26 08:49:36 -07:00
Russ Cox
10ea6519e4 build: make int 64 bits on amd64
The assembly offsets were converted mechanically using
code.google.com/p/rsc/cmd/asmlint. The instruction
changes were done by hand.

Fixes #2188.

R=iant, r, bradfitz, remyoudompheng
CC=golang-dev
https://golang.org/cl/6550058
2012-09-24 20:57:01 -04:00