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Author SHA1 Message Date
Dmitriy Vyukov
c3a86dab36 testing: output benchmark name before executing it 
It makes it clear what benchmark is currently running.
Especially useful in case of hangup or crash.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4816043
 2011-07-21 11:31:07 -04:00
Dmitriy Vyukov
d2ab2b9f42 sync: improve Once fast path 
Use atomic.LoadUint32(&done) instead of
atomic.AddInt32(&done, 0) on fast path.

benchmark            old ns/op    new ns/op    delta
BenchmarkOnce            13.40         7.26  -45.82%
BenchmarkOnce-2          22.90         4.04  -82.36%
BenchmarkOnce-4          25.60         2.16  -91.56%
BenchmarkOnce-8          25.80         1.38  -94.65%
BenchmarkOnce-16         24.40         1.33  -94.55%

(on HP Z600, 2 x Intel Xeon E5620, 8 HT cores, 2.4 GHz)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4787041
 2011-07-21 11:30:14 -04:00
Dmitriy Vyukov
d6ed1b70ad runtime: replace centralized ncgocall counter with a distributed one 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4809042
 2011-07-21 11:29:08 -04:00
David Symonds
6c46afdf41 http: disable sniffer for now. 
Something is broken, and investigation is underway.
In the meantime, godoc is broken, so disable sniffing for now
by reverting to the pre-sniffer state.

R=r
CC=golang-dev
https://golang.org/cl/4809046
 2011-07-21 22:20:09 +10:00
Gustavo Niemeyer
14eba969d8 ld: fix freebsd build reverting .interp move 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4794046
 2011-07-21 03:48:56 -03:00
Michael T. Jones
8cdee891d7 fmt: handle precision 0 format stings in standard way 
The C-stdlib heritage of printf/fprintf/sprintf has two odd
aspects for precisions of zero with integers. First, the zero
can be specified in any of these ways, "%4.0d", "%.0d" and
"%.d" which was not previously supported here. Secondly, the
seemingly universal interpretation of precision for integers
is that precision==0 and value==0 means print nothing at all.
The code here now handles this for integers just as the code
in big/int.c does the same for the Int type. New tests are
added to fmt_test.go to verify these changes.

R=r, r
CC=golang-dev
https://golang.org/cl/4717045
 2011-07-21 16:46:51 +10:00
Rob Pike
0f7a1951b8 exp/template: A template can be in one set only. 
This simplifies the API and makes it easier to make the template
invocation statically secure, at the cost of some minor flexibility.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/4794045
 2011-07-21 14:22:01 +10:00
Nigel Tao
5f134f9b5b html: sync html/testdata/webkit with upstream WebKit. 
As $GOROOT/src/pkg/html/testdata/webkit/README says, we're pulling from
$WEBKITROOT/LayoutTests/html5lib/resources.

R=r
CC=golang-dev
https://golang.org/cl/4810043
 2011-07-21 12:50:45 +10:00
Nigel Tao
5a141064ed html: parse misnested formatting tags according to the HTML5 spec. 
This is the "adoption agency" algorithm.

The test case input is "<a><p>X<a>Y</a>Z</p></a>". The correct parse is:
| <html>
|   <head>
|   <body>
|     <a>
|     <p>
|       <a>
|         "X"
|       <a>
|         "Y"
|       "Z"

R=gri
CC=golang-dev
https://golang.org/cl/4771042
 2011-07-21 11:20:54 +10:00
Rob Pike
d11c0f1dbb gob: send empty but non-nil maps. 
Fixes #2082.

R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/4798042
 2011-07-21 10:27:11 +10:00
Robert Griesemer
4c03bf9c59 godoc: fix zip file directory lookup 
Also: remove left-over println calls.

R=bradfitz
CC=golang-dev
https://golang.org/cl/4807042
 2011-07-20 16:22:13 -07:00
Andrew Balholm
816c972ff0 html: handle character entities without semicolons 
Fix the TODO: unescape("&notit;") should be "¬it;"

Also accept digits in entity names.

R=nigeltao
CC=golang-dev, rsc
https://golang.org/cl/4781042
 2011-07-21 09:10:49 +10:00
David Symonds
78c89d21bc http: sniffing algorithm. 
This follows draft-ietf-websec-mime-sniff-03 in its intent,
though not its algorithmic specification.

R=rsc
CC=golang-dev
https://golang.org/cl/4746042
 2011-07-21 08:38:35 +10:00
Mike Solomon
7911965fe9 io/ioutil: improve performance of ioutil.Discard 
Fixes #2084.

R=bradfitz, rsc
CC=golang-dev
https://golang.org/cl/4817041
 2011-07-20 14:34:49 -07:00
Brad Fitzpatrick
125419a250 CONTRIBUTORS: add Mike Solomon (Google CLA) 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4818041
 2011-07-20 13:30:46 -07:00
Brad Fitzpatrick
bf768294ed os: point readers at the exec package 
R=golang-dev, evan, rsc
CC=golang-dev
https://golang.org/cl/4802046
 2011-07-20 11:38:18 -07:00
Dmitriy Vyukov
102b5b34a7 runtime: apply minor tweaks to channels 
Remove complicated PRNG algorithm
(argument is limited by uint16 and can't be <= 1).
Do not require chansend/chanrecv selgen to be bumped with CAS.

R=rsc, ken
CC=golang-dev
https://golang.org/cl/4816041
 2011-07-20 14:28:55 -04:00
Dmitriy Vyukov
90f3cb13fb runtime: improve performance of sync channels 
1. SudoG always contains a pointer to the element
(thus no variable size, and less copying).
2. chansend/chanrecv allocate SudoG on the stack.
3. Copying of elements and gorotuine notifications
are moved out of critical sections.

benchmark                        old ns/op    new ns/op    delta
BenchmarkSelectUncontended          515.00       514.00   -0.19%
BenchmarkSelectUncontended-2        291.00       281.00   -3.44%
BenchmarkSelectUncontended-4        213.00       189.00  -11.27%
BenchmarkSelectUncontended-8         78.30        79.00   +0.89%
BenchmarkSelectContended            518.00       514.00   -0.77%
BenchmarkSelectContended-2          655.00       631.00   -3.66%
BenchmarkSelectContended-4         1026.00      1051.00   +2.44%
BenchmarkSelectContended-8         2026.00      2128.00   +5.03%
BenchmarkSelectNonblock             175.00       173.00   -1.14%
BenchmarkSelectNonblock-2            85.10        87.70   +3.06%
BenchmarkSelectNonblock-4            60.10        43.30  -27.95%
BenchmarkSelectNonblock-8            37.60        25.50  -32.18%
BenchmarkChanUncontended            109.00       114.00   +4.59%
BenchmarkChanUncontended-2           54.60        57.20   +4.76%
BenchmarkChanUncontended-4           27.40        28.70   +4.74%
BenchmarkChanUncontended-8           14.60        15.10   +3.42%
BenchmarkChanContended              108.00       114.00   +5.56%
BenchmarkChanContended-2            621.00       617.00   -0.64%
BenchmarkChanContended-4            759.00       677.00  -10.80%
BenchmarkChanContended-8           1635.00      1517.00   -7.22%
BenchmarkChanSync                   299.00       256.00  -14.38%
BenchmarkChanSync-2                5055.00      4624.00   -8.53%
BenchmarkChanSync-4                4998.00      4680.00   -6.36%
BenchmarkChanSync-8                5019.00      4760.00   -5.16%
BenchmarkChanProdCons0              316.00       274.00  -13.29%
BenchmarkChanProdCons0-2           1280.00       617.00  -51.80%
BenchmarkChanProdCons0-4           2433.00      1332.00  -45.25%
BenchmarkChanProdCons0-8           3651.00      1934.00  -47.03%
BenchmarkChanProdCons10             153.00       152.00   -0.65%
BenchmarkChanProdCons10-2           626.00       581.00   -7.19%
BenchmarkChanProdCons10-4          1440.00      1323.00   -8.12%
BenchmarkChanProdCons10-8          2036.00      2017.00   -0.93%

R=rsc, ken
CC=golang-dev
https://golang.org/cl/4790042
 2011-07-20 11:51:25 -04:00
Gustavo Niemeyer
ba2e3af177 ld: remove overlap of ELF sections on dynamic binaries 
The dynamic ELF sections were pointing to the proper data,
but that data was already owned by the rodata and text sections.
Some ELF references explicitly prohibit multiple sections from
owning the same data, and strip behaves accordingly.

The data for these sections was moved out and their ranges are
now owned by their respective sections.  This change makes strip
happy both with and without -s being provided at link time.

A test was added in debug/elf to ensure there are no regressions
on this area in the future.

Fixes #1242.
Fixes #2022.

NOTE: Tested on Linux amd64/386/arm only.

R=rsc
CC=golang-dev
https://golang.org/cl/4808043
 2011-07-20 12:47:02 -03:00
Russ Cox
971459e826 net/textproto: fix build 
R=bradfitz
CC=golang-dev
https://golang.org/cl/4815041
 2011-07-20 11:41:41 -04:00
Russ Cox
27a3dcd0d2 net/textproto: avoid 1 copy in ReadLine, ReadContinuedLine 
Fixes #2083.

R=msolo, bradfitz
CC=golang-dev
https://golang.org/cl/4812042
 2011-07-20 11:11:57 -04:00
Marcel van Lohuizen
df07b6d14a exp/norm: API for normalization library. 
R=r, r, mpvl, rsc
CC=golang-dev
https://golang.org/cl/4678041
 2011-07-20 19:46:05 +10:00
Andrew Gerrand
dbba5ccfab gobuilder: goinstall with -dashboard=false instead of -log=false 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4801043
 2011-07-20 16:07:40 +10:00
Andrew Gerrand
40462453c6 tag weekly.2011-07-19 
R=r
CC=golang-dev
https://golang.org/cl/4802043
 2011-07-20 15:48:36 +10:00
Andrew Gerrand
50ddb98b24 weekly.2011-07-19 
R=golang-dev, nigeltao, dsymonds, r
CC=golang-dev
https://golang.org/cl/4801042
 2011-07-20 15:45:55 +10:00
Andrew Gerrand
48d1240e51 misc/dashboard: center align build results 
R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/4806041
 2011-07-20 11:22:56 +10:00
Rob Pike
62f618a22c sync/atomic: delete workaround 
Load seems to work on arm now.

R=dsymonds
CC=golang-dev
https://golang.org/cl/4795042
 2011-07-20 08:39:24 +10:00
Robert Griesemer
8930ce2dc1 godoc: implement http.FileSystem for zip files 
R=rsc, adg, bradfitz
CC=golang-dev
https://golang.org/cl/4750047
 2011-07-19 08:22:20 -07:00
Lucio De Re
b546f50716 runtime: make goc2c build on Plan 9 
pkg/runtime/Makefile:
. Adjusted so "goc2c.c" is built using the Plan 9 libraries.

pkg/runtime/goc2c.c:
. Added/subtracted #include headers to correspond to Plan 9
  toolkit.
. Changed fprintf(stderr,...)/exit() combinations to
  sysfatal() calls, adjusted the "%u" format to "%ud".
. Added exits(0) at the end of main().
. Made main() a void-returning function and removed the
  "return 0" at the end of it.

Tested on UBUNTU and Plan 9 only.

R=r, rsc
CC=golang-dev
https://golang.org/cl/4626093
 2011-07-19 11:04:33 -04:00
Russ Cox
025abd530e runtime: faster entersyscall, exitsyscall 
Uses atomic memory accesses to avoid the need to acquire
and release schedlock on fast paths.

benchmark                            old ns/op    new ns/op    delta
runtime_test.BenchmarkSyscall               73           31  -56.63%
runtime_test.BenchmarkSyscall-2            538           74  -86.23%
runtime_test.BenchmarkSyscall-3            508          103  -79.72%
runtime_test.BenchmarkSyscall-4            721           97  -86.52%
runtime_test.BenchmarkSyscallWork          920          873   -5.11%
runtime_test.BenchmarkSyscallWork-2        516          481   -6.78%
runtime_test.BenchmarkSyscallWork-3        550          343  -37.64%
runtime_test.BenchmarkSyscallWork-4        632          263  -58.39%

(Intel Core i7 L640 2.13 GHz-based Lenovo X201s)

Reduced a less artificial server benchmark
from 11.5r 12.0u 8.0s to 8.3r 9.1u 1.0s.

R=dvyukov, r, bradfitz, r, iant, iant
CC=golang-dev
https://golang.org/cl/4723042
 2011-07-19 11:01:17 -04:00
Wei Guangjing
9f636598ba cgo: windows amd64 port 
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4725041
 2011-07-19 10:47:33 -04:00
Dmitriy Vyukov
0b200b4d09 sync/atomic: fix LoadInt32 on ARM 
R0 is clobbered after cas,
while R1 preserves its value.

R=golang-dev
CC=golang-dev
https://golang.org/cl/4782042
 2011-07-19 22:10:07 +10:00
Rob Pike
3bbeef5201 sync/atomic: attempt to get the arm build green. 
Disable the LoadInt32 and LoadUint32 tests, since they fail.
These should be fixed but we want to get through the rest of the build
to see if something else unrelated is broken.  The arm build has been
bad for a long time.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4780041
 2011-07-19 17:06:13 +10:00
Tarmigan Casebolt
a0d3be1689 goinstall, dashboard: Google Code now supports git 
R=golang-dev, adg, rsc, tarmigan+golang
CC=golang-dev
https://golang.org/cl/4760055
 2011-07-19 16:58:18 +10:00
Rob Pike
423ab2333a 5l: fix arm linker bug introduced by 4742041 
Should fix the arm build.

R=golang-dev, dsymonds, adg
CC=golang-dev
https://golang.org/cl/4777041
 2011-07-19 15:44:25 +10:00
Andrew Gerrand
894222f9de doc/talks/io2010: handle the errors 
R=golang-dev, dsymonds, dsymonds, r
CC=golang-dev
https://golang.org/cl/4771041
 2011-07-19 14:10:12 +10:00
Alex Brainman
42effdf096 go/build: fixes for windows paths 
R=golang-dev, mattn.jp, adg
CC=golang-dev
https://golang.org/cl/4746047
 2011-07-19 14:02:23 +10:00
Robert Griesemer
98f5fc5e86 archive/zip: support functions to get modified time in ns from MS-DOS time 
R=rsc, r, bradfitz, r, adg
CC=golang-dev
https://golang.org/cl/4748056
 2011-07-18 20:30:44 -07:00
Alex Brainman
208e6e6dfc exp/wingui: make sure it builds again 
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/4770041
 2011-07-19 13:18:21 +10:00
Rob Pike
a5a94f5d57 gif: fix local color map and coordinates 
R=nigeltao
CC=golang-dev
https://golang.org/cl/4759051
 2011-07-19 11:47:15 +10:00
Andrew Gerrand
7a18fc3bcb dashboard: list "most installed this week" with rolling count 
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/4631085
 2011-07-19 11:12:10 +10:00
Robert Griesemer
95117d30a2 time: typo in documentation 
R=r
CC=golang-dev
https://golang.org/cl/4763048
 2011-07-18 17:54:32 -07:00
Hector Chu
47e6042f73 runtime: fix select pass 3 
Fixes #2075

R=rsc, ken, r
CC=golang-dev
https://golang.org/cl/4748045
 2011-07-18 16:15:01 -04:00
Russ Cox
bd77619142 runtime: track running goroutine count 
Used to use mcpu+msyscall but that's
problematic for packing into a single
atomic word.  The running goroutine count
(where running == Go code or syscall)
can be maintained separately, always
manipulated under lock.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/4767041
 2011-07-18 15:50:55 -04:00
Dmitriy Vyukov
27753ff108 runtime: add per-M caches for MemStats 
Avoid touching centralized state during
memory manager operations.

R=mirtchovski
CC=golang-dev, rsc
https://golang.org/cl/4766042
 2011-07-18 14:56:22 -04:00
Dmitriy Vyukov
66d5c9b1e9 runtime: add per-M caches for MemStats 
Avoid touching centralized state during
memory manager opreations.

R=rsc
CC=golang-dev
https://golang.org/cl/4766042
 2011-07-18 14:52:57 -04:00
Ian Lance Taylor
257df1719d debug/proc: Remove. 
The package was always GNU/Linux specific, and is no longer
used by anything now that exp/ogle has been removed.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4757049
 2011-07-18 09:55:09 -07:00
Dmitriy Vyukov
ee6e1a3ff7 sync: add fast paths to WaitGroup 
benchmark                                        old ns/op    new ns/op    delta
BenchmarkWaitGroupUncontended                        93.50        33.60  -64.06%
BenchmarkWaitGroupUncontended-2                      44.30        16.90  -61.85%
BenchmarkWaitGroupUncontended-4                      21.80         8.47  -61.15%
BenchmarkWaitGroupUncontended-8                      12.10         4.86  -59.83%
BenchmarkWaitGroupUncontended-16                      7.38         3.35  -54.61%
BenchmarkWaitGroupAddDone                            58.40        33.70  -42.29%
BenchmarkWaitGroupAddDone-2                         293.00        85.80  -70.72%
BenchmarkWaitGroupAddDone-4                         243.00        51.10  -78.97%
BenchmarkWaitGroupAddDone-8                         236.00        52.20  -77.88%
BenchmarkWaitGroupAddDone-16                        215.00        43.30  -79.86%
BenchmarkWaitGroupAddDoneWork                       826.00       794.00   -3.87%
BenchmarkWaitGroupAddDoneWork-2                     450.00       424.00   -5.78%
BenchmarkWaitGroupAddDoneWork-4                     277.00       220.00  -20.58%
BenchmarkWaitGroupAddDoneWork-8                     440.00       116.00  -73.64%
BenchmarkWaitGroupAddDoneWork-16                    569.00        66.50  -88.31%
BenchmarkWaitGroupWait                               29.00         8.04  -72.28%
BenchmarkWaitGroupWait-2                             74.10         4.15  -94.40%
BenchmarkWaitGroupWait-4                            117.00         2.30  -98.03%
BenchmarkWaitGroupWait-8                            111.00         1.31  -98.82%
BenchmarkWaitGroupWait-16                           104.00         1.27  -98.78%
BenchmarkWaitGroupWaitWork                          802.00       792.00   -1.25%
BenchmarkWaitGroupWaitWork-2                        411.00       401.00   -2.43%
BenchmarkWaitGroupWaitWork-4                        210.00       199.00   -5.24%
BenchmarkWaitGroupWaitWork-8                        206.00       105.00  -49.03%
BenchmarkWaitGroupWaitWork-16                       334.00        54.40  -83.71%

R=rsc
CC=golang-dev
https://golang.org/cl/4672050
 2011-07-18 12:35:55 -04:00
Russ Cox
92c6061b5c 5l: assume Linux binary, not Plan 9 
R=bradfitz
CC=golang-dev
https://golang.org/cl/4767042
 2011-07-18 12:30:10 -04:00
Brad Fitzpatrick
3745716bc3 http: let FileServer work when path doesn't begin with a slash 
... as when it's over-stripped with StripPrefix.

R=golang-dev, andybalholm, rsc
CC=golang-dev
https://golang.org/cl/4759052
 2011-07-18 09:04:48 -07:00