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Commit Graph

10651 Commits

Author SHA1 Message Date
Russ Cox
9b875bc037 bytes: faster Count, Index, Equal
Benchmarks are from GOARCH=amd64 on a MacPro5,1.

benchmark                                    old MB/s     new MB/s  speedup
bytes_test.BenchmarkEqual32                    452.89       891.07    1.97x
bytes_test.BenchmarkEqual4K                    852.71      1700.44    1.99x
bytes_test.BenchmarkEqual4M                    841.53      1587.93    1.89x
bytes_test.BenchmarkEqual64M                   838.22      1578.14    1.88x

bytes_test.BenchmarkIndex32                     58.02        48.99    0.84x
bytes_test.BenchmarkIndex4K                     48.26        41.32    0.86x
bytes_test.BenchmarkIndex4M                     48.20        41.24    0.86x
bytes_test.BenchmarkIndex64M                    48.08        41.21    0.86x
bytes_test.BenchmarkIndexEasy32                410.04       546.82    1.33x
bytes_test.BenchmarkIndexEasy4K                849.26     14257.37   16.79x
bytes_test.BenchmarkIndexEasy4M                854.54     17222.15   20.15x
bytes_test.BenchmarkIndexEasy64M               843.57     11060.40   13.11x

bytes_test.BenchmarkCount32                     57.24        50.68    0.89x
bytes_test.BenchmarkCount4K                     48.19        41.82    0.87x
bytes_test.BenchmarkCount4M                     48.18        41.74    0.87x
bytes_test.BenchmarkCount64M                    48.17        41.71    0.87x
bytes_test.BenchmarkCountEasy32                433.11       547.44    1.26x
bytes_test.BenchmarkCountEasy4K               1130.59     14194.06   12.55x
bytes_test.BenchmarkCountEasy4M               1131.23     17231.18   15.23x
bytes_test.BenchmarkCountEasy64M              1111.40     11068.88    9.96x

The non-easy Count/Index benchmarks are a worst case input.

regexp.BenchmarkMatchEasy0_32                  237.46       221.47    0.93x
regexp.BenchmarkMatchEasy0_1K                  553.53      1019.72    1.84x
regexp.BenchmarkMatchEasy0_32K                 693.99      1672.06    2.41x
regexp.BenchmarkMatchEasy0_1M                  688.72      1611.68    2.34x
regexp.BenchmarkMatchEasy0_32M                 680.70      1565.05    2.30x
regexp.BenchmarkMatchEasy1_32                  165.56       243.08    1.47x
regexp.BenchmarkMatchEasy1_1K                  336.45       496.32    1.48x
regexp.BenchmarkMatchEasy1_32K                 302.80       425.63    1.41x
regexp.BenchmarkMatchEasy1_1M                  300.42       414.20    1.38x
regexp.BenchmarkMatchEasy1_32M                 299.64       413.47    1.38x

R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/5451116
2011-12-07 15:09:56 -05:00
Russ Cox
2f2cc24cd8 regexp: avoid allocation of input interface
Matters most for small inputs, because there is no real work
to amortize the allocation effort against.

benchmark                                old ns/op    new ns/op    delta
BenchmarkLiteral                               613          473  -22.84%
BenchmarkNotLiteral                           4981         4931   -1.00%
BenchmarkMatchClass                           7289         7122   -2.29%
BenchmarkMatchClass_InRange                   6618         6663   +0.68%
BenchmarkReplaceAll                           7843         7233   -7.78%
BenchmarkAnchoredLiteralShortNonMatch          329          228  -30.70%
BenchmarkAnchoredLiteralLongNonMatch           322          228  -29.19%
BenchmarkAnchoredShortMatch                    838          715  -14.68%
BenchmarkAnchoredLongMatch                     824          715  -13.23%

benchmark                                 old MB/s     new MB/s  speedup
BenchmarkMatchEasy0_32                      119.73       196.61    1.64x
BenchmarkMatchEasy0_1K                      540.58       538.33    1.00x
BenchmarkMatchEasy0_32K                     732.57       714.00    0.97x
BenchmarkMatchEasy0_1M                      726.44       708.36    0.98x
BenchmarkMatchEasy0_32M                     707.77       691.45    0.98x
BenchmarkMatchEasy1_32                      102.12       136.11    1.33x
BenchmarkMatchEasy1_1K                      298.31       307.04    1.03x
BenchmarkMatchEasy1_32K                     273.56       274.43    1.00x
BenchmarkMatchEasy1_1M                      268.42       269.23    1.00x
BenchmarkMatchEasy1_32M                     266.15       267.34    1.00x
BenchmarkMatchMedium_32                       2.53         3.38    1.34x
BenchmarkMatchMedium_1K                       9.37         9.57    1.02x
BenchmarkMatchMedium_32K                      9.29         9.67    1.04x
BenchmarkMatchMedium_1M                       9.42         9.66    1.03x
BenchmarkMatchMedium_32M                      9.41         9.62    1.02x
BenchmarkMatchHard_32                         6.66         6.75    1.01x
BenchmarkMatchHard_1K                         6.81         6.85    1.01x
BenchmarkMatchHard_32K                        6.79         6.85    1.01x
BenchmarkMatchHard_1M                         6.82         6.83    1.00x
BenchmarkMatchHard_32M                        6.80         6.80    1.00x

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5453076
2011-12-07 15:03:05 -05:00
Russ Cox
3c56a7b17e test: make array smaller in nilptr test
Fixes #2314.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5437154
2011-12-07 15:00:44 -05:00
Olivier Duperray
e97a55810f godoc: <pre> must not occur inside <p>
Fixes #2532

R=golang-dev, dr.volker.dobler, rsc
CC=golang-dev
https://golang.org/cl/5450115
2011-12-07 15:00:38 -05:00
Russ Cox
c3480878c4 A+C: Olivier Duperray, Taru Karttunen (individual CLA)
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5451121
2011-12-07 15:00:32 -05:00
Charles L. Dorian
e4de2e7fd0 math: document special-cases behavior for Dim, Max and Min
Max returns +Inf if x or y is +Inf; else it returns NaN if either x or y is NaN. Max(-0, -0) returns -0.
Min returns -Inf if x or y is -Inf; else it returns NaN if either x or y is NaN. Min(+0, -0) returns -0.
Dim(+Inf, +Inf) = NaN, Dim(-Inf, -Inf) = NaN and Dim(NaN, anything) = NaN.
Also, change "conditions" to "cases" for Sin (missed it in previous CL).

R=rsc, dave
CC=golang-dev
https://golang.org/cl/5437137
2011-12-07 14:52:17 -05:00
Peter Mundy
69191553e7 time: fix daysIn for December
daysBefore[12+1]: index out of range
time.December and Windows SYSTEMTIME.wMonth
are 12 for December.

R=rsc, dsymonds
CC=golang-dev
https://golang.org/cl/5448130
2011-12-07 14:47:25 -05:00
Robert Griesemer
127b5a66b1 strconv: faster float conversion
- added AppendFloatX benchmarks
- 2% to 13% better performance
- check for illegal bitSize

benchmark                                   old ns/op    new ns/op    delta
strconv_test.BenchmarkFormatFloatDecimal         2993         2733   -8.69%
strconv_test.BenchmarkFormatFloat                3384         3141   -7.18%
strconv_test.BenchmarkFormatFloatExp             9192         9010   -1.98%
strconv_test.BenchmarkFormatFloatBig             3279         3207   -2.20%
strconv_test.BenchmarkAppendFloatDecimal         2837         2478  -12.65%
strconv_test.BenchmarkAppendFloat                3196         2928   -8.39%
strconv_test.BenchmarkAppendFloatExp             9028         8773   -2.82%
strconv_test.BenchmarkAppendFloatBig             3151         2782  -11.71%

R=rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5448122
2011-12-07 10:30:27 -08:00
Robert Griesemer
b955bbfbdb misc/benchcmp: don't require "Benchmark" at beginning of line
Output is package_name.BenchmarkXXX.

R=rsc
CC=golang-dev
https://golang.org/cl/5440123
2011-12-07 10:30:08 -08:00
Scott Lawrence
a2ba34d374 ld: fix memory leaks
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5434068
2011-12-07 11:50:39 -05:00
Rémy Oudompheng
0c64972dd1 gc: more accurate description of -w and -W switches.
The -w switch actually prints steps of the syntax tree walks
while -W prints a summary before and after the walk.

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/5444049
2011-12-07 11:45:30 -05:00
Gustav Paul
50c24bf6ec exp/ssh: Have Wait() return an *ExitError
I added the clientChan's msg channel to the list of channels that are closed in mainloop when the server sends a channelCloseMsg.

I added an ExitError type that wraps a Waitmsg similar to that of os/exec. I fill ExitStatus with the data returned in the 'exit-status' channel message and Msg with the data returned in the 'exit-signal' channel message.

Instead of having Wait() return on the first 'exit-status'/'exit-signal' I have it return an ExitError containing the status and signal when the clientChan's msg channel is closed.

I added two tests cases to session_test.go that test for exit status 0 (in which case Wait() returns nil) and exit status 1 (in which case Wait() returns an ExitError with ExitStatus 1)

R=dave, agl, rsc, golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5452051
2011-12-07 09:58:22 -05:00
Dmitriy Vyukov
428062da4e ld: increase default stack size on Windows for cgo
Fixes #2437.

R=rsc, hectorchu, mattn.jp, alex.brainman, jdpoirier, snaury, n13m3y3r
CC=golang-dev
https://golang.org/cl/5371049
2011-12-07 16:53:17 +03:00
Andrew Gerrand
5e43527336 tag weekly.2011-12-06
R=bradfitz
CC=golang-dev
https://golang.org/cl/5450118
2011-12-07 13:38:12 +11:00
Andrew Gerrand
8d1da1c66a doc: fix weekly.2011-12-06 release notes typo
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5453072
2011-12-07 13:33:59 +11:00
Andrew Gerrand
8ad48b3d7c tag weekly.2011-12-06
R=r
CC=golang-dev
https://golang.org/cl/5440125
2011-12-07 13:16:02 +11:00
Andrew Gerrand
0367eebb05 weekly.2011-12-06
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5453070
2011-12-07 13:15:10 +11:00
Brad Fitzpatrick
130e2943a3 http: make Transport warning about connections closing more accurate
It was fragile and non-portable, and then became spammy with
the os.EINVAL removal.  Now it just uses the length of the
Peek return value instead.

R=golang-dev, alex.brainman
CC=golang-dev
https://golang.org/cl/5453065
2011-12-06 16:38:02 -08:00
Adam Langley
554ac03637 crypto: allocate less.
The code in hash functions themselves could write directly into the
output buffer for a savings of about 50ns. But it's a little ugly so I
wasted a copy.

R=bradfitz
CC=golang-dev
https://golang.org/cl/5440111
2011-12-06 18:25:14 -05:00
Dave Cheney
bf59f081c1 exp/ssh: cleanup client auth tests
This CL cleans up the client auth tests, making the
individual test body more manageable.

Also, adds tests for rsa and dsa key negotiation.

Finally, remove the package level use of the variable
strings, which avoids conflicting with the strings pkg.

R=gustav.paul, agl, n13m3y3r, rsc
CC=golang-dev
https://golang.org/cl/5447049
2011-12-06 18:13:20 -05:00
Andrew Gerrand
2c7a84a95b goinstall: honour -install=false flag when -make=true
R=rsc
CC=golang-dev
https://golang.org/cl/5448124
2011-12-07 09:41:20 +11:00
Robert Griesemer
b219e8cbcf strconv: squeezed a bit more out of int/uint formatting
- less code
- slightly better performance (0-4%)

R=r, rsc
CC=golang-dev
https://golang.org/cl/5448120
2011-12-06 13:54:22 -08:00
Adam Langley
02d1dae106 crypto/x509: if a parent cert has a raw subject, use it.
This avoids a problem when creating certificates with parents that
were produce by other code: the Go structures don't contain all the
information about the various ASN.1 string types etc and so that
information would otherwise be lost.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5453067
2011-12-06 16:42:48 -05:00
Rob Pike
ee8b597b1f html/template: simplify ExecuteTemplate a little
Allow the text template to handle the error case of no template
with the given name.
Simplification suggested by Mike Samuel.

R=mikesamuel
CC=golang-dev
https://golang.org/cl/5437147
2011-12-06 12:47:12 -08:00
Rob Pike
66410bac3d fmt: benchmark floating point.
mallocs per Sprintf("%x"): 1
mallocs per Sprintf("%g"): 4

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5449106
2011-12-06 08:40:16 -08:00
Maxim Pimenov
972b98c135 cgo: fix typo in the documentation
R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5448115
2011-12-06 08:16:39 -08:00
Robert Griesemer
e0c006a9b0 strconv: 34% to 63% faster conversions
(Note that the Int and Uint benchmarks use different test sets
and thus cannot be compared against each other. Int and Uint
conversions are approximately the same speed).

Before (best of 3 runs):
strconv_test.BenchmarkFormatInt    100000    15636 ns/op
strconv_test.BenchmarkAppendInt    100000    18930 ns/op
strconv_test.BenchmarkFormatUint   500000     4392 ns/op
strconv_test.BenchmarkAppendUint   500000     5152 ns/op

After (best of 3 runs):

strconv_test.BenchmarkFormatInt    200000    10070 ns/op (-36%)
strconv_test.BenchmarkAppendInt    200000     7097 ns/op (-63%)
strconv_test.BenchmarkFormatUint  1000000     2893 ns/op (-34%)
strconv_test.BenchmarkAppendUint   500000     2462 ns/op (-52%)

R=r, rsc, r
CC=golang-dev
https://golang.org/cl/5449093
2011-12-06 08:15:45 -08:00
Russ Cox
46deaa297b gc: disallow map/func equality via interface comparison
Missed when I removed direct map/func equality.

R=ken2
CC=golang-dev
https://golang.org/cl/5452052
2011-12-06 10:48:17 -05:00
Russ Cox
e4e4cdb39a image: avoid func comparison during ColorModel comparison
When I disallowed map + func comparisons, I only did it
in the static case and missed the comparisons via == on
interface values.  Fixing that turned these up.

R=nigeltao, r
CC=golang-dev
https://golang.org/cl/5440103
2011-12-06 10:47:42 -05:00
Dave Cheney
bbbd41f4ff exp/ssh: simplify client channel open logic
This is part one of a small set of CL's that aim to resolve
the outstanding TODOs relating to channel close and blocking
behavior.

Firstly, the hairy handling of assigning the peersId is now
done in one place. The cost of this change is the slightly
paradoxical construction of the partially created clientChan.

Secondly, by creating clientChan.stdin/out/err when the channel
is opened, the creation of consumers like tcpchan and Session
is simplified; they just have to wire themselves up to the
relevant readers/writers.

R=agl, gustav.paul, rsc
CC=golang-dev
https://golang.org/cl/5448073
2011-12-06 09:33:23 -05:00
Rob Pike
0a5508c692 various: we don't cast, we convert
R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5437142
2011-12-05 19:40:52 -08:00
Andrew Gerrand
ca7d86c4d3 hash: rewrite comment on Hash.Sum method
Fixes #2530.

R=golang-dev, agl
CC=golang-dev
https://golang.org/cl/5449101
2011-12-06 14:12:09 +11:00
Rob Pike
2ed57a8cd8 fmt: only use Stringer or Error for strings
This is a slight change to fmt's semantics, but means that if you use
%d to print an integer with a Stringable value, it will print as an integer.
This came up because Time.Month() couldn't cleanly print as an integer
rather than a name. Using %d on Stringables is silly anyway, so there
should be no effect outside the fmt tests.
As a mild bonus, certain recursive failures of String methods
will also be avoided this way.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5453053
2011-12-05 16:45:51 -08:00
Volker Dobler
af84892643 godoc: Show type examples between variables and methods.
Fixes #2466.

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/5451094
2011-12-06 10:52:43 +11:00
Russ Cox
4feafeeea0 gofix: fix for strconv API change
R=golang-dev, gri, adg, r
CC=golang-dev
https://golang.org/cl/5434098
2011-12-05 15:52:35 -05:00
Russ Cox
2666b815a3 use new strconv API
All but 3 cases (in gcimporter.go and hixie.go)
are automatic conversions using gofix.

No attempt is made to use the new Append functions
even though there are definitely opportunities.

R=golang-dev, gri
CC=golang-dev
https://golang.org/cl/5447069
2011-12-05 15:48:46 -05:00
Russ Cox
efbeaedb64 strconv: new API
R=golang-dev, bradfitz, gri, r, agl
CC=golang-dev
https://golang.org/cl/5434095
2011-12-05 15:48:21 -05:00
Luuk van Dijk
40b2fe004f gc: changes in export format in preparation of inlining.
Includes minimal change to gcimporter to keep it working,

R=rsc, gri
CC=golang-dev
https://golang.org/cl/5431046
2011-12-05 14:40:19 -05:00
Russ Cox
5cb1c82d96 gc: remove type elision in struct literals
R=ken2
CC=golang-dev
https://golang.org/cl/5437136
2011-12-05 14:22:41 -05:00
Russ Cox
98553f1422 spec: remove contentious composite literal shortening
R=gri, r, gustavo, r
CC=golang-dev
https://golang.org/cl/5451099
2011-12-05 14:22:23 -05:00
Charles L. Dorian
abc7df9686 math: add special-cases comments to Sinh and Tanh.
Also change "Special conditions" to "Special cases" as in other functions.

R=rsc, golang-dev
CC=golang-dev
https://golang.org/cl/5440078
2011-12-05 14:01:24 -05:00
Rémy Oudompheng
3538d40ab5 crypto/aes: eliminate some bounds checking and manual truncation.
By converting array indices to uint8, they are automatically
constrained in the array range, and the binary AND with 0xff
is no longer needed anymore.

Before:  aes.BenchmarkEncrypt    363 ns/op
After:   aes.BenchmarkEncrypt    273 ns/op

R=golang-dev, gri, agl
CC=golang-dev, remy
https://golang.org/cl/5450084
2011-12-05 13:30:25 -05:00
Russ Cox
b9ccd077dc runtime: prep for type-specific algorithms
Equality on structs will require arbitrary code for type equality,
so change algorithm in type data from uint8 to table pointer.
In the process, trim top-level map structure from
104/80 bytes (64-bit/32-bit) to 24/12.

Equality on structs will require being able to call code generated
by the Go compiler, and C code has no way to access Go return
values, so change the hash and equal algorithm functions to take
a pointer to a result instead of returning the result.

R=ken
CC=golang-dev
https://golang.org/cl/5453043
2011-12-05 09:40:22 -05:00
Andrew Gerrand
263c955f2f gobuilder: use new dashboard protocol
gobuilder: -commit mode for packages
gobuilder: cripple -package mode temporarily

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5450092
2011-12-05 16:44:10 +11:00
Andrew Gerrand
2c0072217a misc/dashboard: init handler for bootstrapping
misc/dashboard: support unauthenticated GETs
misc/dashboard: add ?nukeonly=1 option to /buildtest

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/5450091
2011-12-05 16:22:14 +11:00
Andrew Gerrand
b9bd0c758a misc/dashboard/app: revert gofix of app engine file
R=dsymonds
CC=golang-dev
https://golang.org/cl/5451092
2011-12-05 13:44:22 +11:00
David Symonds
dbaeb0cf13 net/mail: correctly compare parsed times in the test.
Fixes #2522.

R=golang-dev, bradfitz, alex.brainman
CC=golang-dev
https://golang.org/cl/5449084
2011-12-05 10:05:29 +11:00
Russ Cox
214ec7b547 gc: fix build (not sure how this edit got lost)
R=ken2, ken
CC=golang-dev
https://golang.org/cl/5449072
2011-12-02 15:05:45 -05:00
Russ Cox
7a42dddbe6 gc: fix line number for redundant print
R=ken2
CC=golang-dev
https://golang.org/cl/5434111
2011-12-02 14:58:26 -05:00
Russ Cox
434a6c85cb gc: use gofmt spacing when printing map type
R=ken2
CC=golang-dev
https://golang.org/cl/5450071
2011-12-02 14:45:07 -05:00