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Commit Graph

13428 Commits

Author SHA1 Message Date
Brad Fitzpatrick
1e814df79b net/http: avoid a bunch of unnecessary CanonicalHeaderKey calls
CanonicalHeaderKey didn't allocate, but it did use unnecessary
CPU in the hot path, deciding it didn't need to allocate.

I considered using constants for all these common header keys
but I didn't think it would be prettier. "Content-Length" looks
better than contentLength or hdrContentLength, etc.

R=golang-dev, dave
CC=golang-dev
https://golang.org/cl/6255053
2012-05-28 11:07:24 -07:00
Brad Fitzpatrick
c238031b2d net/http: speed up ServeMux when no patterns contain hostnames
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6248053
2012-05-28 10:58:49 -07:00
Brad Fitzpatrick
469e3a91d4 net/http: correct and faster hasToken
Fixes #3535

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6245060
2012-05-28 10:55:39 -07:00
Alexey Borzenkov
cb62365f57 net/http: reuse http proxy connections for different http requests
Comment on cache keys above connectMethod says "http to proxy, http
anywhere after that", however in reality target address was always
included, which prevented http requests to different target
addresses to reuse the same http proxy connection.

R=golang-dev, r, rsc, bradfitz
CC=golang-dev
https://golang.org/cl/5901064
2012-05-28 10:46:51 -07:00
Alex Brainman
042848da65 syscall: simplify text returned by Errno.Error() when FormatMessage fails
Fixes #3623.

R=golang-dev, bsiegert, rsc
CC=golang-dev
https://golang.org/cl/6218072
2012-05-27 18:57:16 +10:00
Alexey Borzenkov
dcc80e4553 net/rpc: improve response reading logic
CL 5956051 introduced too many call != nil checks, so
attempt to improve this by splitting logic into three
distinct parts.

R=r
CC=golang-dev
https://golang.org/cl/6248048
2012-05-26 14:27:36 -07:00
Nigel Tao
1423ecb126 image/png: optimize the paeth filter implementation.
image/png benchmarks:
benchmark                       old ns/op    new ns/op    delta
BenchmarkPaeth                         10            7  -29.21%
BenchmarkDecodeGray               2381745      2241620   -5.88%
BenchmarkDecodeNRGBAGradient      9535555      8835100   -7.35%
BenchmarkDecodeNRGBAOpaque        8189590      7611865   -7.05%
BenchmarkDecodePaletted           1300688      1301940   +0.10%
BenchmarkDecodeRGB                6760146      6317082   -6.55%
BenchmarkEncodePaletted           6048596      6122666   +1.22%
BenchmarkEncodeRGBOpaque         18891140     19474230   +3.09%
BenchmarkEncodeRGBA              78945350     78552600   -0.50%

Wall time for Denis Cheremisov's PNG-decoding program given in
https://groups.google.com/group/golang-nuts/browse_thread/thread/22aa8a05040fdd49
Before: 2.25s
After:  2.27s
Delta:  +1%

The same program, but with a different PNG input file
(http://upload.wikimedia.org/wikipedia/commons/4/47/PNG_transparency_demonstration_1.png)
and only 100 iterations instead of 1000
Before: 4.78s
After:  4.42s
Delta:  -8%

R=rsc
CC=golang-dev
https://golang.org/cl/6242056
2012-05-25 14:08:51 +10:00
Russ Cox
97cbf47c78 cmd/8c: better fix for 64-bit register smash
Ken pointed out that CL 5998043 was ugly code.
This should be better.

Fixes #3501.

R=ken2
CC=golang-dev
https://golang.org/cl/6258049
2012-05-24 23:36:26 -04:00
Russ Cox
51072eb1fb cmd/gc: fix parallel assignment in range
for expr1, expr2 = range slice
was assigning to expr1 and expr2 in sequence
instead of in parallel.  Now it assigns in parallel,
as it should.  This matters for things like
for i, x[i] = range slice.

Fixes #3464.

R=ken2
CC=golang-dev
https://golang.org/cl/6252048
2012-05-24 23:05:36 -04:00
Russ Cox
bf18d57d4a runtime: handle and test large map values
This is from CL 5451105 but was dropped from that CL.
See also CL 6137051.

The only change compared to 5451105 is to check for
h != nil in reflect·mapiterinit; allowing use of nil maps
must have happened after that original CL.

Fixes #3573.

R=golang-dev, dave, r
CC=golang-dev
https://golang.org/cl/6215078
2012-05-24 22:41:07 -04:00
Brad Fitzpatrick
ca6b4d535f misc/dist: use archive/tar.FileInfoHeader
Fixes #3299

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6250056
2012-05-24 17:32:25 -07:00
Andrew Balholm
c23041efd9 exp/html: adjust parseForeignContent to match spec
Remove redundant checks for integration points.

Ignore null bytes in text.

Don't break out of foreign content for a <font> tag unless it
has a color, face, or size attribute.

Check for MathML text integration points when breaking out of
foreign content.

Pass two new tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6256045
2012-05-25 10:03:59 +10:00
Nigel Tao
60ffae25bc hash/adler32: optimize.
The bulk of the gains come from hoisting the modulo ops outside of
the inner loop.

Reducing the digest type from 8 bytes to 4 bytes gains another 1% on
the hash/adler32 micro-benchmark.

Benchmarks for $GOOS,$GOARCH = linux,amd64 below.

hash/adler32 benchmark:
benchmark             old ns/op    new ns/op    delta
BenchmarkAdler32KB         1660         1364  -17.83%

image/png benchmark:
benchmark                       old ns/op    new ns/op    delta
BenchmarkDecodeGray               2466909      2425539   -1.68%
BenchmarkDecodeNRGBAGradient      9884500      9751705   -1.34%
BenchmarkDecodeNRGBAOpaque        8511615      8379800   -1.55%
BenchmarkDecodePaletted           1366683      1330677   -2.63%
BenchmarkDecodeRGB                6987496      6884974   -1.47%
BenchmarkEncodePaletted           6292408      6040052   -4.01%
BenchmarkEncodeRGBOpaque         19780680     19178440   -3.04%
BenchmarkEncodeRGBA              80738600     79076800   -2.06%

Wall time for Denis Cheremisov's PNG-decoding program given in
https://groups.google.com/group/golang-nuts/browse_thread/thread/22aa8a05040fdd49
Before: 2.44s
After:  2.26s
Delta:  -7%

R=rsc
CC=golang-dev
https://golang.org/cl/6251044
2012-05-25 09:58:38 +10:00
Robert Griesemer
184209787c strconv: better documentation for FormatInt, FormatUint.
Fixes #3580.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6252047
2012-05-24 16:24:39 -07:00
Bill Thiede
132dbb61aa net/mail: more liberal parsing of Date headers.
Fixes #3639.

R=golang-dev, dsymonds
CC=golang-dev
https://golang.org/cl/6243045
2012-05-25 09:19:21 +10:00
David Symonds
d6ac5b32d2 C: Bill Thiede (Google CLA)
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6257050
2012-05-25 09:18:12 +10:00
Alexey Borzenkov
161f50574a net/rpc: fix race condition when request write partially fails
When client fails to write a request is sends caller that error,
however server might have failed to read that request in the mean
time and replied with that error. When client then reads the
response the call would no longer be pending, so call will be nil

Handle this gracefully by discarding such server responses

R=golang-dev, r
CC=golang-dev, rsc
https://golang.org/cl/5956051
2012-05-24 16:07:08 -07:00
Brad Fitzpatrick
68f42ea27e archive/tar: fix windows test failure
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6249052
2012-05-24 14:32:18 -07:00
Russ Cox
c6ce44822c cmd/gc: faster code, mainly for rotate
* Eliminate bounds check on known small shifts.
* Rewrite x<<s | x>>(32-s) as a rotate (constant s).
* More aggressive (but still minimal) range analysis.

R=ken, dave, iant
CC=golang-dev
https://golang.org/cl/6209077
2012-05-24 17:20:07 -04:00
Rob Pike
11c1b1f96b runtime: fix docs for Caller and Callers
The previous attempt to explain this got it backwards (all the more reason to be
sad we couldn't make the two functions behave the same).

Fixes #3669.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6249051
2012-05-24 14:15:43 -07:00
Brad Fitzpatrick
2b98401a83 archive/tar: add FileInfoHeader function
Fixes #3295

R=adg, rsc, mike.rosset
CC=golang-dev
https://golang.org/cl/5796073
2012-05-24 14:10:54 -07:00
Russ Cox
ce69666273 exp/locale/collate: avoid 16-bit math
There's no need for the 16-bit arithmetic here,
and it tickles a long-standing compiler bug.
Fix the exp code not to use 16-bit math and
create an explicit test for the compiler bug.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6256048
2012-05-24 14:50:36 -04:00
Russ Cox
c44768cb1c cmd/gc: fix small integer bounds check bug
R=ken2
CC=golang-dev
https://golang.org/cl/6254046
2012-05-24 14:01:39 -04:00
Robert Griesemer
2dde4f5d29 spec: clarify evaluation order of "i, x[i] = range ..."
Part of fix for issue 3464.

R=golang-dev, rsc, mirtchovski, iant, r
CC=golang-dev
https://golang.org/cl/6246045
2012-05-24 10:59:48 -07:00
Robert Griesemer
016d0d0900 godoc: correctly categorize interface methods, performance tuning
- interface methods appeared under VarDecl in search results
  (long-standing TODO)

- don't walk parts of AST which contain no indexable material
  (minor performance tuning)

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6228047
2012-05-24 10:56:35 -07:00
Robert Griesemer
07612b8db0 math/big: make Rat.Denom() always return a reference
The documentation says so, but in the case of a normalized
integral Rat, the denominator was a new value. Changed the
internal representation to use an Int to represent the
denominator (with the sign ignored), so a reference to it
can always be returned.

Clarified documentation and added test cases.

Fixes #3521.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6237045
2012-05-24 10:49:38 -07:00
Russ Cox
3d3b4906f9 cmd/6g: peephole fixes/additions
* Shift/rotate by constant doesn't have to stop subprop. (also in 8g)
* Remove redundant MOVLQZX instructions.
* An attempt at issuing loads early.
  Good for 0.5% on a good day, might not be worth keeping.
  Need to understand more about whether the x86
  looks ahead to what loads might be coming up.

R=ken2, ken
CC=golang-dev
https://golang.org/cl/6203091
2012-05-24 12:11:32 -04:00
Shenghou Ma
34ad3995e0 cmd/cc: fix uint right shift in constant evaluation
Fixes #3664.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6249048
2012-05-25 00:08:52 +08:00
Dmitriy Vyukov
b0702bd0db runtime: faster GC mark phase
Also bump MaxGcproc to 8.

benchmark             old ns/op    new ns/op    delta
Parser               3796323000   3763880000   -0.85%
Parser-2             3591752500   3518560250   -2.04%
Parser-4             3423825250   3334955250   -2.60%
Parser-8             3304585500   3267014750   -1.14%
Parser-16            3313615750   3286160500   -0.83%

Tree                  984128500    942501166   -4.23%
Tree-2                932564444    883266222   -5.29%
Tree-4                835831000    799912777   -4.30%
Tree-8                819238500    789717333   -3.73%
Tree-16               880837833    837840055   -5.13%

Tree2                 604698100    579716900   -4.13%
Tree2-2               372414500    356765200   -4.20%
Tree2-4               187488100    177455900   -5.56%
Tree2-8               136315300    102086700  -25.11%
Tree2-16               93725900     76705800  -22.18%

ParserPause           157441210    166202783   +5.56%
ParserPause-2          93842650     85199900   -9.21%
ParserPause-4          56844404     53535684   -5.82%
ParserPause-8          35739446     30767613  -16.15%
ParserPause-16         32718255     27212441  -16.83%

TreePause              29610557     29787725   +0.60%
TreePause-2            24001659     20674421  -13.86%
TreePause-4            15114887     12842781  -15.03%
TreePause-8            13128725     10741747  -22.22%
TreePause-16           16131360     12506901  -22.47%

Tree2Pause           2673350920   2651045280   -0.83%
Tree2Pause-2         1796999200   1709350040   -4.88%
Tree2Pause-4         1163553320   1090706480   -6.67%
Tree2Pause-8          987032520    858916360  -25.11%
Tree2Pause-16         864758560    809567480   -6.81%

ParserLastPause       280537000    289047000   +3.03%
ParserLastPause-2     183030000    166748000   -8.90%
ParserLastPause-4     105817000     91552000  -13.48%
ParserLastPause-8      65127000     53288000  -18.18%
ParserLastPause-16     45258000     38334000  -15.30%

TreeLastPause          45072000     51449000  +12.39%
TreeLastPause-2        39269000     37866000   -3.57%
TreeLastPause-4        23564000     20649000  -12.37%
TreeLastPause-8        20881000     15807000  -24.30%
TreeLastPause-16       23297000     17309000  -25.70%

Tree2LastPause       6046912000   5797120000   -4.13%
Tree2LastPause-2     3724034000   3567592000   -4.20%
Tree2LastPause-4     1874831000   1774524000   -5.65%
Tree2LastPause-8     1363108000   1020809000  -12.79%
Tree2LastPause-16     937208000    767019000  -22.18%

R=rsc, 0xe2.0x9a.0x9b
CC=golang-dev
https://golang.org/cl/6223050
2012-05-24 10:55:50 +04:00
Andrew Balholm
82e2272566 exp/html: detect "integration points" in SVG and MathML content
Detect HTML integration points and MathML text integration points.
At these points, process tokens as HTML, not as foreign content.

Pass 33 more tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6249044
2012-05-24 13:46:41 +10:00
David Symonds
04f3cf0faa flag: include flag name in redefinition panic.
R=golang-dev, rsc, r
CC=golang-dev
https://golang.org/cl/6250043
2012-05-24 13:42:02 +10:00
Joel Sing
5a043de746 runtime: make go work on netbsd/amd64
R=golang-dev, rsc, devon.odell
CC=golang-dev
https://golang.org/cl/6222044
2012-05-24 11:33:11 +10:00
Andrew Balholm
e947eba291 exp/html: update test data
Import updated test data from the WebKit Subversion repository (SVN revision 118111).

Some of the old tests were failing because we were HTML5 compliant, but the tests weren't.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6228049
2012-05-24 10:35:31 +10:00
Brad Fitzpatrick
83771afe10 encoding/json: documentation fix
Fixes #3650

R=golang-dev, adg
CC=golang-dev
https://golang.org/cl/6238046
2012-05-23 17:18:05 -07:00
Robert Griesemer
1f46cb0ba2 go/parser: resolve all parameter types
Fixes #3655.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6213065
2012-05-23 16:12:45 -07:00
Brad Fitzpatrick
f430d0e609 cmd/api: add flag to specify contexts
I needed this to explore per-GOOS/GOARCH differences in pkg
syscall for a recent CL.  Others may find it useful too.

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6236046
2012-05-23 13:45:53 -07:00
Brad Fitzpatrick
e4ed9494e5 net/http: fix response Connection: close, close client connections
Fixes #3663
Updates #3540 (fixes it more)
Updates #1967 (fixes it more, re-enables a test)

R=golang-dev, n13m3y3r
CC=golang-dev
https://golang.org/cl/6213064
2012-05-23 11:19:38 -07:00
Robert Griesemer
7482822bba go/parser: minor cleanup
- there is no label scope at package level
- open/close all scopes symmetrically now
  that there is only one parse entry point
  (parseFile)

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6230047
2012-05-23 09:37:48 -07:00
Brad Fitzpatrick
eacc3cc8a1 net/http: clarify ErrBodyNotAllowed error message
It's usually due to writing on HEAD requests.

R=golang-dev, rsc, r, r
CC=golang-dev
https://golang.org/cl/6206106
2012-05-23 09:31:24 -07:00
Shenghou Ma
e0b0f62d96 cmd/ld: fix Linux/ARM build
CL 5823055 removed a line introduced in Linux/ARM cgo support.
        Because readsym() now returns nil for "$a", "$d" mapping symbols,
        no matter the settings of `needSym', we still have to guard against
        them in ldelf().

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6220073
2012-05-23 11:36:24 +08:00
Alex Brainman
50e5951374 syscall: implement SetsockoptLinger for windows
R=rsc
CC=golang-dev
https://golang.org/cl/6225048
2012-05-23 13:05:05 +10:00
Brad Fitzpatrick
71c1a7b777 cmd/api: add api/next.txt
This quiets all.bash noise for upcoming features we know about.

The all.bash warnings will now only print for things not in next.txt
(or in next.txt but not in the API).

Once an API is frozen, we rename next.txt to a new frozen file
(like go1.txt)

Fixes #3651

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6218069
2012-05-22 18:41:20 -07:00
Andrew Balholm
33a89b5fda exp/html: adjust the last few insertion modes to match the spec
Handle text, comment, and doctype tokens in afterBodyIM, afterAfterBodyIM,
and afterAfterFramesetIM.

Pass three more tests.

R=nigeltao
CC=golang-dev
https://golang.org/cl/6231043
2012-05-23 11:11:34 +10:00
Robert Griesemer
13a59b8c6d math/big: implement JSON un/marshaling support for Ints
Also: simplified some existing tests.

No support for Rats for now because the precision-preserving
default notation (fractions of the form a/b) is not a valid
JSON value.

Fixes #3657.

R=golang-dev, bradfitz, rsc
CC=golang-dev
https://golang.org/cl/6211079
2012-05-22 17:20:37 -07:00
Ugorji Nwoke
4f7c33cd5a text/template: exec should accept interface value as valid.
Currently, if you pass some data to a template as an interface (e.g. interface{})
and extract that value that value as a parameter for a function, it fails, saying
wrong type.

This is because it is only looking at the interface type, not the interface content.

This CL uses the underlying content as the parameter to the func.

Fixes #3642.

R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/6218052
2012-05-22 15:21:35 -07:00
Shenghou Ma
576d648b2a cmd/ld, cmd/6l, cmd/8l, cmd/5l: fix hidden/local symbol import for ELF systems
Introduce a newsym() to cmd/lib.c to add a symbol but don't add
them to hash table.
   Introduce a new bit flag SHIDDEN and bit mask SMASK to handle hidden
and/or local symbols in ELF symbol tables. Though we still need to order
the symbol table entries correctly.
   Fix for issue 3261 comment #9.
   For CL 5822049.

R=iant, rsc
CC=golang-dev
https://golang.org/cl/5823055
2012-05-23 02:32:27 +08:00
Shenghou Ma
1c4b77a7c8 cmd/ld: take section symbols' value into account for PE
ld -r could generate multiple section symbols for the same section,
but with different values, we have to take that into account.
    Fixes #3322.
    Part of issue 3261.
    For CL 5822049.

R=golang-dev, iant, rsc, iant
CC=golang-dev
https://golang.org/cl/5823059
2012-05-23 02:27:44 +08:00
Shenghou Ma
090f9fc3ef sync/atomic: use cas64 to implement {Load,Store,Add}{Uint,Int}64 on Linux/ARM
Now with GOARM=5 our all.bash should pass on ARMv5 systems.
        Fixes #3331.

R=golang-dev, rsc, dvyukov
CC=golang-dev
https://golang.org/cl/6210071
2012-05-23 02:02:01 +08:00
Shenghou Ma
fb3a1b6821 runtime: support conditional execution in ARM softfloat
Fixes #3638.

R=golang-dev, dave, rsc
CC=golang-dev
https://golang.org/cl/6213057
2012-05-23 02:00:40 +08:00
Russ Cox
3d03ec8896 undo CL 6112054 / 2eec2501961c
Now that we've fixed the Expect: test, this CL should be okay.

««« original CL description
net/http: revert 97d027b3aa68

Revert the following change set:

        changeset:   13018:97d027b3aa68
        user:        Gustavo Niemeyer <gustavo@niemeyer.net>
        date:        Mon Apr 23 22:00:16 2012 -0300
        summary:     net/http: allow clients to disable keep-alive

This broke a test on Windows 64 and somebody else
will have to check.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6112054
»»»

Fixes #3540.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/6228046
2012-05-22 13:56:40 -04:00