Commits · 6fe82e6b9667ad1129043d8c9ba8a218561a4277 · go / golang

04 Aug, 2011 1 commit

test/bench: note changes after recent improvements to locking and runtime · 6fe82e6b

Rob Pike authored Aug 04, 2011

Some tests are significantly faster (50%), a few are slower (up to 30%).
Fannkuch is confusing: parallel code is a little slower for gc, non-parallel and all gccgo runs are faster.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4830058

6fe82e6b

03 Aug, 2011 2 commits

runtime: correct Note documentation · a496c9ea

Dmitriy Vyukov authored Aug 03, 2011

Reflect the fact that notesleep() can be called
by exactly one thread.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4816064

a496c9ea

misc/vim: Godoc command. · b32e2105

Yasuhiro Matsumoto authored Aug 03, 2011

vim command 'Godoc' to see godoc.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4815071

b32e2105

02 Aug, 2011 4 commits
- errchk: add -0 flag · 16cdba85
  Russ Cox authored Aug 02, 2011
```
R=lvd
CC=golang-dev
https://golang.org/cl/4837049
```
  16cdba85
- ld: fail linking if the top-level package is not main. · 11e254e6
  David Symonds authored Aug 02, 2011
```
This makes {5,6,8}l conform to the spec more tightly.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4826063
```
  11e254e6
- exp/template: return nil value from helpers on error, even methods. · 3dbe10c4
  Rob Pike authored Aug 02, 2011
```
R=rsc
CC=golang-dev
https://golang.org/cl/4835046
```
  3dbe10c4
- go/build: use GOBIN as binary path for GOROOT · b0ef0294
  Andrew Gerrand authored Aug 02, 2011
```
Fixes #2106.

R=golang-dev, dsymonds, rsc
CC=golang-dev
https://golang.org/cl/4836047
```
  b0ef0294
01 Aug, 2011 7 commits
- tag release.r59 · 034711ed
  Andrew Gerrand authored Aug 01, 2011
```
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4841044
```
  034711ed
- exp/template: make index function on maps return zero value when key not present. · 6ed27d47
  Roger Peppe authored Aug 01, 2011
```
R=r
CC=golang-dev
https://golang.org/cl/4808065
```
  6ed27d47
- exp/template: ensure that a valid Set is returned even on error. · 5c5ce6d2
  Roger Peppe authored Aug 01, 2011
```
R=r
CC=golang-dev
https://golang.org/cl/4838044
```
  5c5ce6d2
- 5g: fix set but not used error · 317911c9
  Dave Cheney authored Aug 01, 2011
```
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4816061
```
  317911c9
- http: correct format flags when printing errors during tests · 8800f7cb
  Alex Brainman authored Aug 01, 2011
```
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4809065
```
  8800f7cb
- cmd/ld/pe.c: Corrected mismatched print formats and variables. · 05f734c8
  Lucio De Re authored Aug 01, 2011
```
R=golang-dev, alex.brainman
CC=golang-dev, rsc
https://golang.org/cl/4839041
```
  05f734c8
- html: parse doctype tokens; merge adjacent text nodes. · 1d0c141d
  Nigel Tao authored Aug 01, 2011
```
The test case input is "<!DOCTYPE html><span><button>foo</span>bar".
The correct parse is:
| <!DOCTYPE html>
| <html>
|   <head>
|   <body>
|     <span>
|       <button>
|         "foobar"

R=gri
CC=golang-dev
https://golang.org/cl/4794063
```
  1d0c141d
31 Jul, 2011 6 commits

doc: document release.r59 · 4d2766e9
Andrew Gerrand authored Jul 31, 2011
```
R=golang-dev, dsymonds, r, r
CC=golang-dev
https://golang.org/cl/4835044
```
4d2766e9
doc: fix typo in Effective Go · 70f6133b
Andrew Gerrand authored Jul 31, 2011
```
Fixes #2120.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4810061
```
70f6133b

syscall: delay load of dll functions until they are called · 9d7e3934

Alex Brainman authored Jul 31, 2011

Before this change, syscall package would load
all dlls used anywhere in the go tree on startup.
For example, this program:

package main

import "fmt"

func main() {
       fmt.Printf("Hello world\n")
}

would load these dlls

kernel32.dll
advapi32.dll
shell32.dll
wsock32.dll
ws2_32.dll
dnsapi.dll
iphlpapi.dll

Most of these dlls are network related and are not used
in this program. Now the same program loads only

kernel32.dll
shell32.dll

This decreases start times somewhat.

This also relaxes the rules of which dlls can be included
in the standard library. We could now include system calls
that are not available on all versions of Windows, because
we could decide if we should call them during runtime.

R=rsc, vcc.163
CC=golang-dev
https://golang.org/cl/4815046

9d7e3934

go_faq: drop a dramatic comma. · be96fa5a
David Symonds authored Jul 31, 2011
```
R=r
CC=golang-dev
https://golang.org/cl/4809064
```
be96fa5a
exp/norm: correct package doc comment · ffccc026
Andrew Gerrand authored Jul 31, 2011
```
Fixes #2118.

R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/4815073
```
ffccc026

exp/template: fix endless loop · 7162f39f

Robert Griesemer authored Jul 31, 2011

No progress was made in indirect() if the reflect.Value
was an non-nil and non-empty interface.

R=r, r
CC=golang-dev
https://golang.org/cl/4810060

7162f39f

29 Jul, 2011 14 commits

tag weekly.2011-07-29 · bf184398
Andrew Gerrand authored Jul 29, 2011
```
R=rsc
CC=golang-dev
https://golang.org/cl/4833047
```
bf184398
weekly.2011-07-29 · b5831084
Andrew Gerrand authored Jul 29, 2011
```
R=rsc
CC=golang-dev
https://golang.org/cl/4801062
```
b5831084

runtime: fix scheduling race · 9bc58acc

Hector Chu authored Jul 29, 2011

Affects programs using cgo or runtime.LockOSThread.

Fixes #2100.

R=rsc, dvyukov
CC=golang-dev
https://golang.org/cl/4810059

9bc58acc

xml: Header: fix close tag and newline · 31442a67
Kyle Lemons authored Jul 29, 2011
```
R=rsc
CC=golang-dev
https://golang.org/cl/4830043
```
31442a67

libmach: stubs for openbsd · 2d7ddfa6

Joel Sing authored Jul 29, 2011

Add libmach stubs for openbsd.

R=rsc
CC=golang-dev
https://golang.org/cl/4815065

2d7ddfa6

godoc: allow form feed in text files · 124172e2

Russ Cox authored Jul 29, 2011

Now recognizes misc/emacs/go-mode-load.el as text.

Fixes #2115.

R=gri
CC=golang-dev
https://golang.org/cl/4801061

124172e2

6l: OpenBSD support · ffa14e84

Joel Sing authored Jul 29, 2011

Add linker support for OpenBSD ELF-64.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4815066

ffa14e84

runtime: fix data race in findfunc() · 91f0f181

Dmitriy Vyukov authored Jul 29, 2011

The data race can lead to reads of partially
initialized concurrently mutated symbol data.
The change also adds a simple sanity test
for Caller() and FuncForPC().

R=rsc
CC=golang-dev
https://golang.org/cl/4817058

91f0f181

syscall: move bsd pipe syscall · eb2b3f5d

Joel Sing authored Jul 29, 2011

Not all BSDs have the same pipe() syscall implementation - move the Darwin/FreeBSD specific implementation into their respective OS syscall files. This will be needed to add OpenBSD syscall support.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4823057

eb2b3f5d

archive/zip: more efficient reader and bug fix · e0b6f472
Andrew Gerrand authored Jul 29, 2011
```
Fixes #2090.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4815068
```
e0b6f472
CONTRIBUTORS: add Joel Sing (Google CLA) · 60dac9b3
Russ Cox authored Jul 29, 2011
```
R=golang-dev, r
CC=golang-dev, jsing
https://golang.org/cl/4830044
```
60dac9b3

runtime: improve Linux mutex · 4e5086b9

Dmitriy Vyukov authored Jul 29, 2011

The implementation is hybrid active/passive spin/blocking mutex.
The design minimizes amount of context switches and futex calls.
The idea is that all critical sections in runtime are intentially
small, so pure blocking mutex behaves badly causing
a lot of context switches, thread parking/unparking and kernel calls.
Note that some synthetic benchmarks become somewhat slower,
that's due to increased contention on other data structures,
it should not affect programs that do any real work.

On 2 x Intel E5620, 8 HT cores, 2.4GHz
benchmark                     old ns/op    new ns/op    delta
BenchmarkSelectContended         521.00       503.00   -3.45%
BenchmarkSelectContended-2       661.00       320.00  -51.59%
BenchmarkSelectContended-4      1139.00       629.00  -44.78%
BenchmarkSelectContended-8      2870.00       878.00  -69.41%
BenchmarkSelectContended-16     5276.00       818.00  -84.50%
BenchmarkChanContended           112.00       103.00   -8.04%
BenchmarkChanContended-2         631.00       174.00  -72.42%
BenchmarkChanContended-4         682.00       272.00  -60.12%
BenchmarkChanContended-8        1601.00       520.00  -67.52%
BenchmarkChanContended-16       3100.00       372.00  -88.00%
BenchmarkChanSync                253.00       239.00   -5.53%
BenchmarkChanSync-2             5030.00      4648.00   -7.59%
BenchmarkChanSync-4             4826.00      4694.00   -2.74%
BenchmarkChanSync-8             4778.00      4713.00   -1.36%
BenchmarkChanSync-16            5289.00      4710.00  -10.95%
BenchmarkChanProdCons0           273.00       254.00   -6.96%
BenchmarkChanProdCons0-2         599.00       400.00  -33.22%
BenchmarkChanProdCons0-4        1168.00       659.00  -43.58%
BenchmarkChanProdCons0-8        2831.00      1057.00  -62.66%
BenchmarkChanProdCons0-16       4197.00      1037.00  -75.29%
BenchmarkChanProdCons10          150.00       140.00   -6.67%
BenchmarkChanProdCons10-2        607.00       268.00  -55.85%
BenchmarkChanProdCons10-4       1137.00       404.00  -64.47%
BenchmarkChanProdCons10-8       2115.00       828.00  -60.85%
BenchmarkChanProdCons10-16      4283.00       855.00  -80.04%
BenchmarkChanProdCons100         117.00       110.00   -5.98%
BenchmarkChanProdCons100-2       558.00       218.00  -60.93%
BenchmarkChanProdCons100-4       722.00       287.00  -60.25%
BenchmarkChanProdCons100-8      1840.00       431.00  -76.58%
BenchmarkChanProdCons100-16     3394.00       448.00  -86.80%
BenchmarkChanProdConsWork0      2014.00      1996.00   -0.89%
BenchmarkChanProdConsWork0-2    1207.00      1127.00   -6.63%
BenchmarkChanProdConsWork0-4    1913.00       611.00  -68.06%
BenchmarkChanProdConsWork0-8    3016.00       949.00  -68.53%
BenchmarkChanProdConsWork0-16   4320.00      1154.00  -73.29%
BenchmarkChanProdConsWork10     1906.00      1897.00   -0.47%
BenchmarkChanProdConsWork10-2   1123.00      1033.00   -8.01%
BenchmarkChanProdConsWork10-4   1076.00       571.00  -46.93%
BenchmarkChanProdConsWork10-8   2748.00      1096.00  -60.12%
BenchmarkChanProdConsWork10-16  4600.00      1105.00  -75.98%
BenchmarkChanProdConsWork100    1884.00      1852.00   -1.70%
BenchmarkChanProdConsWork100-2  1235.00      1146.00   -7.21%
BenchmarkChanProdConsWork100-4  1217.00       619.00  -49.14%
BenchmarkChanProdConsWork100-8  1534.00       509.00  -66.82%
BenchmarkChanProdConsWork100-16 4126.00       918.00  -77.75%
BenchmarkSyscall                  34.40        33.30   -3.20%
BenchmarkSyscall-2               160.00       121.00  -24.38%
BenchmarkSyscall-4               131.00       136.00   +3.82%
BenchmarkSyscall-8               139.00       131.00   -5.76%
BenchmarkSyscall-16              161.00       168.00   +4.35%
BenchmarkSyscallWork             950.00       950.00   +0.00%
BenchmarkSyscallWork-2           481.00       480.00   -0.21%
BenchmarkSyscallWork-4           268.00       270.00   +0.75%
BenchmarkSyscallWork-8           156.00       169.00   +8.33%
BenchmarkSyscallWork-16          188.00       184.00   -2.13%
BenchmarkSemaSyntNonblock         36.40        35.60   -2.20%
BenchmarkSemaSyntNonblock-2       81.40        45.10  -44.59%
BenchmarkSemaSyntNonblock-4      126.00       108.00  -14.29%
BenchmarkSemaSyntNonblock-8      112.00       112.00   +0.00%
BenchmarkSemaSyntNonblock-16     110.00       112.00   +1.82%
BenchmarkSemaSyntBlock            35.30        35.30   +0.00%
BenchmarkSemaSyntBlock-2         118.00       124.00   +5.08%
BenchmarkSemaSyntBlock-4         105.00       108.00   +2.86%
BenchmarkSemaSyntBlock-8         101.00       111.00   +9.90%
BenchmarkSemaSyntBlock-16        112.00       118.00   +5.36%
BenchmarkSemaWorkNonblock        810.00       811.00   +0.12%
BenchmarkSemaWorkNonblock-2      476.00       414.00  -13.03%
BenchmarkSemaWorkNonblock-4      238.00       228.00   -4.20%
BenchmarkSemaWorkNonblock-8      140.00       126.00  -10.00%
BenchmarkSemaWorkNonblock-16     117.00       116.00   -0.85%
BenchmarkSemaWorkBlock           810.00       811.00   +0.12%
BenchmarkSemaWorkBlock-2         454.00       466.00   +2.64%
BenchmarkSemaWorkBlock-4         243.00       241.00   -0.82%
BenchmarkSemaWorkBlock-8         145.00       137.00   -5.52%
BenchmarkSemaWorkBlock-16        132.00       123.00   -6.82%
BenchmarkContendedSemaphore      123.00       102.00  -17.07%
BenchmarkContendedSemaphore-2     34.80        34.90   +0.29%
BenchmarkContendedSemaphore-4     34.70        34.80   +0.29%
BenchmarkContendedSemaphore-8     34.70        34.70   +0.00%
BenchmarkContendedSemaphore-16    34.80        34.70   -0.29%
BenchmarkMutex                    26.80        26.00   -2.99%
BenchmarkMutex-2                 108.00        45.20  -58.15%
BenchmarkMutex-4                 103.00       127.00  +23.30%
BenchmarkMutex-8                 109.00       147.00  +34.86%
BenchmarkMutex-16                102.00       152.00  +49.02%
BenchmarkMutexSlack               27.00        26.90   -0.37%
BenchmarkMutexSlack-2            149.00       165.00  +10.74%
BenchmarkMutexSlack-4            121.00       209.00  +72.73%
BenchmarkMutexSlack-8            101.00       158.00  +56.44%
BenchmarkMutexSlack-16            97.00       129.00  +32.99%
BenchmarkMutexWork               792.00       794.00   +0.25%
BenchmarkMutexWork-2             407.00       409.00   +0.49%
BenchmarkMutexWork-4             220.00       209.00   -5.00%
BenchmarkMutexWork-8             267.00       160.00  -40.07%
BenchmarkMutexWork-16            315.00       300.00   -4.76%
BenchmarkMutexWorkSlack          792.00       793.00   +0.13%
BenchmarkMutexWorkSlack-2        406.00       404.00   -0.49%
BenchmarkMutexWorkSlack-4        225.00       212.00   -5.78%
BenchmarkMutexWorkSlack-8        268.00       136.00  -49.25%
BenchmarkMutexWorkSlack-16       300.00       300.00   +0.00%
BenchmarkRWMutexWrite100          27.10        27.00   -0.37%
BenchmarkRWMutexWrite100-2        33.10        40.80  +23.26%
BenchmarkRWMutexWrite100-4       113.00        88.10  -22.04%
BenchmarkRWMutexWrite100-8       119.00        95.30  -19.92%
BenchmarkRWMutexWrite100-16      148.00       109.00  -26.35%
BenchmarkRWMutexWrite10           29.60        29.40   -0.68%
BenchmarkRWMutexWrite10-2        111.00        61.40  -44.68%
BenchmarkRWMutexWrite10-4        270.00       208.00  -22.96%
BenchmarkRWMutexWrite10-8        204.00       185.00   -9.31%
BenchmarkRWMutexWrite10-16       261.00       190.00  -27.20%
BenchmarkRWMutexWorkWrite100    1040.00      1036.00   -0.38%
BenchmarkRWMutexWorkWrite100-2   593.00       580.00   -2.19%
BenchmarkRWMutexWorkWrite100-4   470.00       365.00  -22.34%
BenchmarkRWMutexWorkWrite100-8   468.00       289.00  -38.25%
BenchmarkRWMutexWorkWrite100-16  604.00       374.00  -38.08%
BenchmarkRWMutexWorkWrite10      951.00       951.00   +0.00%
BenchmarkRWMutexWorkWrite10-2   1001.00       928.00   -7.29%
BenchmarkRWMutexWorkWrite10-4   1555.00      1006.00  -35.31%
BenchmarkRWMutexWorkWrite10-8   2085.00      1171.00  -43.84%
BenchmarkRWMutexWorkWrite10-16  2082.00      1614.00  -22.48%

R=rsc, iant, msolo, fw, iant
CC=golang-dev
https://golang.org/cl/4711045

4e5086b9

gc: fix pprof deadlock · bed7e3ed

Russ Cox authored Jul 29, 2011

Fixes #2051.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4834041

bed7e3ed

gc: more graceful errors during struct definition · 032ffb2e
Russ Cox authored Jul 29, 2011
```
Fixes #2110.

R=ken2
CC=golang-dev
https://golang.org/cl/4823060
```
032ffb2e

28 Jul, 2011 6 commits

exp/template: fix build · 33a4da89
Rob Pike authored Jul 28, 2011
```
TBR=gri

R=gri
CC=golang-dev
https://golang.org/cl/4815070
```
33a4da89

build: fix noclobber · 71ba47ac

Russ Cox authored Jul 28, 2011

I got it backwards last time, and somehow
that was leaking into the parent shell?

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/4826054

71ba47ac

exp/template: simplify the helper functions · 1b4dff0f

Rob Pike authored Jul 28, 2011

- create a pair of "Must" functions, one for templates, one for sets
- regularize the return values of the parsers so they can be wrapped by Must
- delete all the old Must functions and methods.

R=golang-dev, gri, r
CC=golang-dev
https://golang.org/cl/4826052

1b4dff0f

5g, 6g, 8g: shift, opt fixes · 28a23675
Russ Cox authored Jul 28, 2011
```
Fixes #1808.

R=ken2
CC=golang-dev
https://golang.org/cl/4813052
```
28a23675
5g: defer vs optimizer bug · 8c23c1ab
Russ Cox authored Jul 28, 2011
```
Fixes #1924.

R=ken2
CC=golang-dev
https://golang.org/cl/4802063
```
8c23c1ab

http: make serveFile redirects relative to work with StripPrefix · 3de6228a

Andrew Balholm authored Jul 28, 2011

serveFile was using absolute redirects, which didn't work under StripPrefix.
Now it uses relative redirects.

R=golang-dev, rsc, bradfitz
CC=golang-dev, kevlar
https://golang.org/cl/4789042

3de6228a