- 10 Apr, 2012 15 commits
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Shenghou Ma authored
Supported in ARMv5TE and above, excluding ARMv5TExP. For CL 5990066. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5999044
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Pascal S. de Kloe authored
Feed append the complete content at once. BenchmarkAdler32KB 1000000 2534 ns/op 404.05 MB/s BenchmarkCrc32KB 500000 4757 ns/op 215.26 MB/s BenchmarkCrc64KB 500000 4769 ns/op 214.70 MB/s BenchmarkFnv32KB 1000000 2417 ns/op 423.64 MB/s BenchmarkFnv32aKB 1000000 2408 ns/op 425.23 MB/s BenchmarkFnv64KB 500000 4262 ns/op 240.21 MB/s BenchmarkFnv64aKB 500000 4234 ns/op 241.83 MB/s R=iant, rsc, r, minux.ma CC=golang-dev https://golang.org/cl/5937053
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Akshat Kumar authored
Change 5660047 moved an FLDCW instruction that disables invalid operand traps into runtime·asminit, which is called from runtime·mstart. Thus, runtime·check is being called prior to setting the appropriate control bits, which on any QNaN comparison will cause Plan 9 to take an invalid operand trap. This change loads the control bits (for Plan 9) prior to runtime·check. Ideally, this should be done before the QNaN checks on any system, but possibly other kernels simply don't ever trap on invalid operands. R=golang-dev, rminnich CC=golang-dev, john, rsc https://golang.org/cl/5939045
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Russ Cox authored
R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/6004043
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Quan Yong Zhai authored
Part of issue 3381 R=rsc, minux.ma, dave CC=golang-dev https://golang.org/cl/5969064
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Russ Cox authored
Without an explicit signal for a truncation, copy propagation will sometimes propagate a 32-bit truncation and end up overwriting uses of the original 64-bit value. The case that arose in practice is in C but I believe that the same could plausibly happen in Go. The main reason we didn't run into the same in Go is that I (perhaps incorrectly?) drop MOVL AX, AX during gins, so the truncation was never generated, so it didn't confuse the optimizer. Fixes #1315. Fixes #3488. R=ken2 CC=golang-dev https://golang.org/cl/6002043
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Russ Cox authored
This is a pointer being copied; MOVL can't possibly be right. R=ken2 CC=golang-dev https://golang.org/cl/5999043
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Russ Cox authored
Assignment of a computed uint64 value to an address derived with a function call was executing the call after computing the value, which trashed the value (held in registers). long long *f(void) { return 0; } void g(int x, int y) { *f() = (long long)x | (long long)y<<32; } Before: (x.c:3) TEXT g+0(SB),(gok(71)) ... (x.c:4) ORL AX,DX (x.c:4) ORL CX,BX (x.c:4) CALL ,f+0(SB) (x.c:4) MOVL DX,(AX) (x.c:4) MOVL BX,4(AX) After: (x.c:3) TEXT g+0(SB),(gok(71)) (x.c:4) CALL ,f+0(SB) ... (x.c:4) ORL CX,BX (x.c:4) ORL DX,BP (x.c:4) MOVL BX,(AX) (x.c:4) MOVL BP,4(AX) Fixes #3501. R=ken2 CC=golang-dev https://golang.org/cl/5998043
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Shenghou Ma authored
Fixes #3379. R=golang-dev, alex.brainman, rsc, bradfitz CC=golang-dev https://golang.org/cl/5909043
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Shenghou Ma authored
R=bradfitz, rsc CC=golang-dev https://golang.org/cl/5991081
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Russ Cox authored
R=ken2 CC=golang-dev https://golang.org/cl/5992082
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Russ Cox authored
R=ken2 CC=golang-dev https://golang.org/cl/5989073
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Joel Sing authored
Block signals during thread creation, otherwise the new thread can receive a signal prior to initialisation completing. Fixes #3102. R=golang-dev, rsc, devon.odell, minux.ma CC=golang-dev https://golang.org/cl/5757064
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Rob Pike authored
R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5989063
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Alex Brainman authored
Fixes #3482. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5987070
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- 09 Apr, 2012 8 commits
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Rob Pike authored
It is a bug that Caller and Callers disagree about the offset of the skip parameter. Document the bug. R=rsc, dsymonds, r, iant CC=golang-dev https://golang.org/cl/5976064
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Alexey Borzenkov authored
On windows Mercurial installed with easy_install typically creates an hg.bat batch file in Python Scripts directory, which cannot be used with CreateProcess unless full path is specified. Work around by launching hg via cmd.exe /c. Additionally, fix a rare FormatMessageW crash. Fixes #3093. R=golang-dev, rsc, alex.brainman, aram, jdpoirier, mattn.jp CC=golang-dev https://golang.org/cl/5937043
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Benny Siegert authored
* sort imports * use runtime.GOROOT * fix some typos R=golang-dev, dave, rsc CC=golang-dev https://golang.org/cl/5987054
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Brad Fitzpatrick authored
This fixes all.bash on shared machines. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5992078
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Shenghou Ma authored
Fixes #3445. R=golang-dev, rsc, mtj CC=golang-dev https://golang.org/cl/5975061
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Shenghou Ma authored
R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5989065
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Shenghou Ma authored
R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5986063
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Dmitriy Vyukov authored
make MHeap.allspans an array instead on a linked-list, it's required for parallel for benchmark old ns/op new ns/op delta garbage.BenchmarkTree 494435529 487962705 -1.31% garbage.BenchmarkTree-2 499652705 485358000 -2.86% garbage.BenchmarkTree-4 468482117 454093117 -3.07% garbage.BenchmarkTree-8 488533235 471872470 -3.41% garbage.BenchmarkTree-16 507835176 492558470 -3.01% garbage.BenchmarkTree2 31453900 31404300 -0.16% garbage.BenchmarkTree2-2 21440600 21477000 +0.17% garbage.BenchmarkTree2-4 10982000 11117400 +1.23% garbage.BenchmarkTree2-8 7544700 7456700 -1.17% garbage.BenchmarkTree2-16 7049500 6805700 -3.46% garbage.BenchmarkParser 4448988000 4453264000 +0.10% garbage.BenchmarkParser-2 4086045000 4057948000 -0.69% garbage.BenchmarkParser-4 3677365000 3661246000 -0.44% garbage.BenchmarkParser-8 3517253000 3540190000 +0.65% garbage.BenchmarkParser-16 3506562000 3463478000 -1.23% garbage.BenchmarkTreePause 20969784 21100238 +0.62% garbage.BenchmarkTreePause-2 20215875 20139572 -0.38% garbage.BenchmarkTreePause-4 17240709 16683624 -3.23% garbage.BenchmarkTreePause-8 18196386 17639306 -3.06% garbage.BenchmarkTreePause-16 20621158 20215056 -1.97% garbage.BenchmarkTree2Pause 173992142 173872380 -0.07% garbage.BenchmarkTree2Pause-2 131281904 131366666 +0.06% garbage.BenchmarkTree2Pause-4 93484952 95109619 +1.74% garbage.BenchmarkTree2Pause-8 88950523 86533333 -2.72% garbage.BenchmarkTree2Pause-16 86071238 84089190 -2.30% garbage.BenchmarkParserPause 135815000 135255952 -0.41% garbage.BenchmarkParserPause-2 92691523 91451428 -1.34% garbage.BenchmarkParserPause-4 53392190 51611904 -3.33% garbage.BenchmarkParserPause-8 36059523 35116666 -2.61% garbage.BenchmarkParserPause-16 30174300 27340600 -9.39% garbage.BenchmarkTreeLastPause 28420000 29142000 +2.54% garbage.BenchmarkTreeLastPause-2 23514000 26779000 +13.89% garbage.BenchmarkTreeLastPause-4 21773000 18660000 -14.30% garbage.BenchmarkTreeLastPause-8 24072000 21276000 -11.62% garbage.BenchmarkTreeLastPause-16 25149000 28541000 +13.49% garbage.BenchmarkTree2LastPause 314491000 313982000 -0.16% garbage.BenchmarkTree2LastPause-2 214363000 214715000 +0.16% garbage.BenchmarkTree2LastPause-4 109778000 111115000 +1.22% garbage.BenchmarkTree2LastPause-8 75390000 74522000 -1.15% garbage.BenchmarkTree2LastPause-16 70333000 67880000 -3.49% garbage.BenchmarkParserLastPause 327247000 326815000 -0.13% garbage.BenchmarkParserLastPause-2 217039000 212529000 -2.08% garbage.BenchmarkParserLastPause-4 119722000 111535000 -6.84% garbage.BenchmarkParserLastPause-8 70806000 69613000 -1.68% garbage.BenchmarkParserLastPause-16 62813000 48009000 -23.57% R=rsc, r CC=golang-dev https://golang.org/cl/5992055
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- 07 Apr, 2012 2 commits
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Dmitriy Vyukov authored
benchmark old ns/op new ns/op delta garbage.BenchmarkParser 4448988000 4370531000 -1.76% garbage.BenchmarkParser-2 4086045000 4023083000 -1.54% garbage.BenchmarkParser-4 3677365000 3667020000 -0.28% garbage.BenchmarkParser-8 3517253000 3543946000 +0.76% garbage.BenchmarkParser-16 3506562000 3512518000 +0.17% garbage.BenchmarkTree 494435529 505784058 +2.30% garbage.BenchmarkTree-2 499652705 502774823 +0.62% garbage.BenchmarkTree-4 468482117 465713352 -0.59% garbage.BenchmarkTree-8 488533235 482287000 -1.28% garbage.BenchmarkTree-16 507835176 500654882 -1.41% garbage.BenchmarkTree2 31453900 28804600 -8.42% garbage.BenchmarkTree2-2 21440600 19065800 -11.08% garbage.BenchmarkTree2-4 10982000 10009100 -8.86% garbage.BenchmarkTree2-8 7544700 6479800 -14.11% garbage.BenchmarkTree2-16 7049500 6163200 -12.57% garbage.BenchmarkParserPause 135815000 125360666 -7.70% garbage.BenchmarkParserPause-2 92691523 84365476 -8.98% garbage.BenchmarkParserPause-4 53392190 46995809 -11.98% garbage.BenchmarkParserPause-8 36059523 30998900 -14.03% garbage.BenchmarkParserPause-16 30174300 27613350 -8.49% garbage.BenchmarkTreePause 20969784 22568102 +7.62% garbage.BenchmarkTreePause-2 20215875 20975130 +3.76% garbage.BenchmarkTreePause-4 17240709 17180666 -0.35% garbage.BenchmarkTreePause-8 18196386 18205870 +0.05% garbage.BenchmarkTreePause-16 20621158 20486867 -0.65% garbage.BenchmarkTree2Pause 173992142 159995285 -8.04% garbage.BenchmarkTree2Pause-2 131281904 118013714 -10.11% garbage.BenchmarkTree2Pause-4 93484952 85092666 -8.98% garbage.BenchmarkTree2Pause-8 88950523 77340809 -13.05% garbage.BenchmarkTree2Pause-16 86071238 76557952 -11.05% garbage.BenchmarkParserLastPause 327247000 288205000 -11.93% garbage.BenchmarkParserLastPause-2 217039000 187336000 -13.69% garbage.BenchmarkParserLastPause-4 119722000 105069000 -12.24% garbage.BenchmarkParserLastPause-8 70806000 64755000 -8.55% garbage.BenchmarkParserLastPause-16 62813000 53486000 -14.85% garbage.BenchmarkTreeLastPause 28420000 29735000 +4.63% garbage.BenchmarkTreeLastPause-2 23514000 25427000 +8.14% garbage.BenchmarkTreeLastPause-4 21773000 19548000 -10.22% garbage.BenchmarkTreeLastPause-8 24072000 24046000 -0.11% garbage.BenchmarkTreeLastPause-16 25149000 25291000 +0.56% garbage.BenchmarkTree2LastPause 314491000 287988000 -8.43% garbage.BenchmarkTree2LastPause-2 214363000 190616000 -11.08% garbage.BenchmarkTree2LastPause-4 109778000 100052000 -8.86% garbage.BenchmarkTree2LastPause-8 75390000 64753000 -14.11% garbage.BenchmarkTree2LastPause-16 70333000 61484000 -12.58% FTR, below are result with the empty prefetch function, that is, single RET but no real prefetching. It suggests that inlinable PREFETCH is worth pursuing. benchmark old ns/op new ns/op delta garbage.BenchmarkParser 4448988000 4560488000 +2.51% garbage.BenchmarkParser-2 4086045000 4129728000 +1.07% garbage.BenchmarkParser-4 3677365000 3728672000 +1.40% garbage.BenchmarkParser-8 3517253000 3583968000 +1.90% garbage.BenchmarkParser-16 3506562000 3591414000 +2.42% garbage.BenchmarkTree 494435529 499580882 +1.04% garbage.BenchmarkTree-4 468482117 467387294 -0.23% garbage.BenchmarkTree-8 488533235 478311117 -2.09% garbage.BenchmarkTree-2 499652705 499324235 -0.07% garbage.BenchmarkTree-16 507835176 502005705 -1.15% garbage.BenchmarkTree2 31453900 33296800 +5.86% garbage.BenchmarkTree2-2 21440600 22466400 +4.78% garbage.BenchmarkTree2-4 10982000 11402700 +3.83% garbage.BenchmarkTree2-8 7544700 7476500 -0.90% garbage.BenchmarkTree2-16 7049500 7338200 +4.10% garbage.BenchmarkParserPause 135815000 139529142 +2.73% garbage.BenchmarkParserPause-2 92691523 95229190 +2.74% garbage.BenchmarkParserPause-4 53392190 53083476 -0.58% garbage.BenchmarkParserPause-8 36059523 34594800 -4.06% garbage.BenchmarkParserPause-16 30174300 30063300 -0.37% garbage.BenchmarkTreePause 20969784 21866920 +4.28% garbage.BenchmarkTreePause-2 20215875 20731125 +2.55% garbage.BenchmarkTreePause-4 17240709 17275837 +0.20% garbage.BenchmarkTreePause-8 18196386 17898777 -1.64% garbage.BenchmarkTreePause-16 20621158 20662772 +0.20% garbage.BenchmarkTree2Pause 173992142 184336857 +5.95% garbage.BenchmarkTree2Pause-2 131281904 138005714 +5.12% garbage.BenchmarkTree2Pause-4 93484952 98449238 +5.31% garbage.BenchmarkTree2Pause-8 88950523 89286095 +0.38% garbage.BenchmarkTree2Pause-16 86071238 89568666 +4.06% garbage.BenchmarkParserLastPause 327247000 342189000 +4.57% garbage.BenchmarkParserLastPause-2 217039000 217224000 +0.09% garbage.BenchmarkParserLastPause-4 119722000 121327000 +1.34% garbage.BenchmarkParserLastPause-8 70806000 71941000 +1.60% garbage.BenchmarkParserLastPause-16 62813000 60166000 -4.21% garbage.BenchmarkTreeLastPause 28420000 27840000 -2.04% garbage.BenchmarkTreeLastPause-2 23514000 27390000 +16.48% garbage.BenchmarkTreeLastPause-4 21773000 21414000 -1.65% garbage.BenchmarkTreeLastPause-8 24072000 21705000 -9.83% garbage.BenchmarkTreeLastPause-16 25149000 23932000 -4.84% garbage.BenchmarkTree2LastPause 314491000 332894000 +5.85% garbage.BenchmarkTree2LastPause-2 214363000 224611000 +4.78% garbage.BenchmarkTree2LastPause-4 109778000 113976000 +3.82% garbage.BenchmarkTree2LastPause-8 75390000 67223000 -10.83% garbage.BenchmarkTree2LastPause-16 70333000 73216000 +4.10% R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5991057
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Bobby Powers authored
I have a small web server that simply sets several cookies along with an expires header, and then returns. In the cpuprofile for a 200k request benchmark, time.Time.Format() was showing up as 8.3% of cpu usage. Giving the buffer an inital capacity to avoid reallocs on append drops it down to 7.6%. R=golang-dev, r CC=golang-dev https://golang.org/cl/5992058
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- 06 Apr, 2012 2 commits
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Charles L. Dorian authored
R=rsc, golang-dev CC=golang-dev https://golang.org/cl/5994043
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Benny Siegert authored
Building go currently fails on NetBSD, thus the regeneration scripts do not run correctly. With these changes, at least the go_bootstrap tool builds correctly. R=golang-dev, r, bradfitz CC=golang-dev https://golang.org/cl/5695064
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- 05 Apr, 2012 13 commits
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Shenghou Ma authored
R=agl, rsc, fullung CC=golang-dev https://golang.org/cl/5972056
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Stéphane Travostino authored
The shouldEscape function did not correctly escape the reserved characters listed in RFC 3986 §2.2, breaking some strict web servers. Fixes #3433. R=rsc CC=golang-dev https://golang.org/cl/5970050
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Russ Cox authored
R=golang-dev CC=golang-dev https://golang.org/cl/5991048
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Dmitriy Vyukov authored
factor sweepspan() out of sweep(), no logical changes R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5991047
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Dmitriy Vyukov authored
This is factored out part of: https://golang.org/cl/5279048/ (Parallel GC) benchmark old ns/op new ns/op delta garbage.BenchmarkParser 3999106750 3975026500 -0.60% garbage.BenchmarkParser-2 3720553750 3719196500 -0.04% garbage.BenchmarkParser-4 3502857000 3474980500 -0.80% garbage.BenchmarkParser-8 3375448000 3341310500 -1.01% garbage.BenchmarkParserLastPause 329401000 324097000 -1.61% garbage.BenchmarkParserLastPause-2 208953000 214222000 +2.52% garbage.BenchmarkParserLastPause-4 110933000 111656000 +0.65% garbage.BenchmarkParserLastPause-8 71969000 78230000 +8.70% garbage.BenchmarkParserPause 230808842 197237400 -14.55% garbage.BenchmarkParserPause-2 123674365 125197595 +1.23% garbage.BenchmarkParserPause-4 80518525 85710333 +6.45% garbage.BenchmarkParserPause-8 58310243 56940512 -2.35% garbage.BenchmarkTree2 31471700 31289400 -0.58% garbage.BenchmarkTree2-2 21536800 21086300 -2.09% garbage.BenchmarkTree2-4 11074700 10880000 -1.76% garbage.BenchmarkTree2-8 7568600 7351400 -2.87% garbage.BenchmarkTree2LastPause 314664000 312840000 -0.58% garbage.BenchmarkTree2LastPause-2 215319000 210815000 -2.09% garbage.BenchmarkTree2LastPause-4 110698000 108751000 -1.76% garbage.BenchmarkTree2LastPause-8 75635000 73463000 -2.87% garbage.BenchmarkTree2Pause 174280857 173147571 -0.65% garbage.BenchmarkTree2Pause-2 131332714 129665761 -1.27% garbage.BenchmarkTree2Pause-4 93803095 93422904 -0.41% garbage.BenchmarkTree2Pause-8 86242333 85146761 -1.27% R=rsc CC=golang-dev https://golang.org/cl/5987045
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Dmitriy Vyukov authored
+add standard bench output to tree2 +print GOMAXPROCS as go test does R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5992044
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Dmitriy Vyukov authored
R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5985048
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Dmitriy Vyukov authored
This is factored out part of: https://golang.org/cl/5279048/ (Parallel GC) R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5985047
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Dmitriy Vyukov authored
R=rsc CC=golang-dev https://golang.org/cl/5987046
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Hong Ruiqi authored
R=golang-dev, dsymonds CC=golang-dev https://golang.org/cl/5990043
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Alex Brainman authored
Fixes #3476. R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/5986045
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Dave Cheney authored
Fixes #3458. R=adg, dsymonds CC=golang-dev https://golang.org/cl/5969071
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Andrew Gerrand authored
Fixes #3420. (which was already fixed) R=golang-dev, bradfitz, dsymonds CC=golang-dev https://golang.org/cl/5987043
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