- 11 Apr, 2016 11 commits
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Dominik Honnef authored
The previous cleanup was done with a buggy tool, missing some potential rewrites. Change-Id: I333467036e355f999a6a493e8de87e084f374e26 Reviewed-on: https://go-review.googlesource.com/21378Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Shahar Kohanim authored
After making dwarf generation backed by LSyms there was a performance regression of about 10%. These changes make on the fly symbol generation faster and are meant to help mitigate that. name old secs new secs delta LinkCmdGo 0.55 ± 9% 0.53 ± 8% -4.42% (p=0.000 n=100+99) name old MaxRSS new MaxRSS delta LinkCmdGo 152k ± 6% 149k ± 3% -1.99% (p=0.000 n=99+97) Change-Id: Iacca3ec924ce401aa83126bc0b10fe89bedf0ba6 Reviewed-on: https://go-review.googlesource.com/21733 Run-TryBot: Shahar Kohanim <skohanim@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
David Crawshaw <crawshaw@golang.org>
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Russ Cox authored
For heavily loaded servers, even 1 second of trace is too large to process with the trace viewer; using a float64 here allows fetching /debug/pprof/trace?seconds=0.1. Change-Id: I286c07abf04f9c1fe594b0e26799bf37f5c734db Reviewed-on: https://go-review.googlesource.com/21455Reviewed-by:
Austin Clements <austin@google.com>
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Dave Cheney authored
Merge the amd64 lfstack implementation into the general 64 bit implementation. Change-Id: Id9ed61b90d2e3bc3b0246294c03eb2c92803b6ca Reviewed-on: https://go-review.googlesource.com/21707 Run-TryBot: Dave Cheney <dave@cheney.net> Reviewed-by:
Minux Ma <minux@golang.org>
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Andrew Gerrand authored
Change-Id: I7bbdd9600e0d9a647aeea16f1ae9e42a4e0cf44d Reviewed-on: https://go-review.googlesource.com/21823Reviewed-by:
Rob Pike <r@golang.org>
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Michael Munday authored
This commit adds two new functions to cgen.go: hasHMUL64 and hasRROTC64. These are used to determine whether or not an architecture supports the instructions needed to perform an optimization in cgen_div. This commit should not affect existing architectures (although it does add s390x to the new functions). However, since most architectures support HMUL the hasHMUL64 function could be modified to enable most of the optimizations in cgen_div on those platforms. Change-Id: I33bf329ddeb6cf2954bd17b7c161012de352fb62 Reviewed-on: https://go-review.googlesource.com/21775Reviewed-by:
Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Andrew Gerrand authored
Change-Id: Icb9e947a43fb87fbfe0655b09e0d7e8f61825aeb Reviewed-on: https://go-review.googlesource.com/21825Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Jeremy Jackins authored
After mdempsky's recent changes, these are the only references to "TheChar" left in the Go tree. Without the context, and without knowing the history, this is confusing. Also rename sys.TheGoos and sys.TheGoarch to sys.GOOS and sys.GOARCH. Also change the heap dump format to include sys.GOARCH rather than TheChar, which is no longer a concept. Updates #15169 (changes heapdump format) Change-Id: I3e99eeeae00ed55d7d01e6ed503d958c6e931dca Reviewed-on: https://go-review.googlesource.com/21647Reviewed-by:
Matthew Dempsky <mdempsky@google.com>
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Brad Fitzpatrick authored
Updates #13021 Updates #15224 Change-Id: Ia3cd608bb887fcfd8d81b035fa57bd5eb8edf09b Reviewed-on: https://go-review.googlesource.com/21810Reviewed-by:
Andrew Gerrand <adg@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by:
Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Brad Fitzpatrick authored
Also, check it and explode earlier, rather than cryptic failures later. Change-Id: I319a425f60e2bc9d005a187fbdbd153faa96411c Reviewed-on: https://go-review.googlesource.com/21799Reviewed-by:
Andrew Gerrand <adg@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Minux Ma <minux@golang.org>
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David Symonds authored
This excludes internal and testdata packages, as well as func types. No new whitelist entries were found. Change-Id: Ie7d42ce0a235394e4bcabf09e155726a35cd2d3d Reviewed-on: https://go-review.googlesource.com/21822Reviewed-by:
Rob Pike <r@golang.org>
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- 10 Apr, 2016 14 commits
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Martin Möhrmann authored
Only compute the number of maximum allowed elements per slice once. name old time/op new time/op delta MakeSlice-2 55.5ns ± 1% 45.6ns ± 2% -17.88% (p=0.000 n=99+100) Change-Id: I951feffda5d11910a75e55d7e978d306d14da2c5 Reviewed-on: https://go-review.googlesource.com/21801 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Ian Lance Taylor <iant@golang.org>
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Andrew Gerrand authored
Updates golang/go#15106 Change-Id: I4214b841d63bb7e9c3c5ede2abe21a8a68f06c41 Reviewed-on: https://go-review.googlesource.com/21701Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Andrew Gerrand authored
When evaluating "{{.MissingField}}" on a nil *T, Exec returns "can't evaluate field MissingField in type *T" instead of "nil pointer evaluating *T.MissingField". Fixes golang/go#15125 Change-Id: I6e73f61b8a72c694179c1f8cdc808766c90b6f57 Reviewed-on: https://go-review.googlesource.com/21705Reviewed-by:
Rob Pike <r@golang.org>
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Keith Randall authored
Instead of being a hint, resultInArg0 is now enforced by regalloc. This allows us to delete all the code from amd64/ssa.go which deals with converting from a semantically three-address instruction into some copies plus a two-address instruction. Change-Id: Id4f39a80be4b678718bfd42a229f9094ab6ecd7c Reviewed-on: https://go-review.googlesource.com/21816Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com>
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Josh Bleecher Snyder authored
Instead of spilling newlen, recalculate it. This removes a spill from the fast path, at the cost of a cheap recalculation on the (rare) growth path. This uses 8 bytes less of stack space. It generates two more bytes of code, but that is due to suboptimal register allocation; see far below. Runtime append microbenchmarks are all over the map, presumably due to incidental code movement. Sample code: func s(b []byte) []byte { b = append(b, 1, 2, 3) return b } Before: "".s t=1 size=160 args=0x30 locals=0x48 0x0000 00000 (append.go:8) TEXT "".s(SB), $72-48 0x0000 00000 (append.go:8) MOVQ (TLS), CX 0x0009 00009 (append.go:8) CMPQ SP, 16(CX) 0x000d 00013 (append.go:8) JLS 149 0x0013 00019 (append.go:8) SUBQ $72, SP 0x0017 00023 (append.go:8) FUNCDATA $0, gclocals·6432f8c6a0d23fa7bee6c5d96f21a92a(SB) 0x0017 00023 (append.go:8) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB) 0x0017 00023 (append.go:9) MOVQ "".b+88(FP), CX 0x001c 00028 (append.go:9) LEAQ 3(CX), DX 0x0020 00032 (append.go:9) MOVQ DX, "".autotmp_0+64(SP) 0x0025 00037 (append.go:9) MOVQ "".b+96(FP), BX 0x002a 00042 (append.go:9) CMPQ DX, BX 0x002d 00045 (append.go:9) JGT $0, 86 0x002f 00047 (append.go:8) MOVQ "".b+80(FP), AX 0x0034 00052 (append.go:9) MOVB $1, (AX)(CX*1) 0x0038 00056 (append.go:9) MOVB $2, 1(AX)(CX*1) 0x003d 00061 (append.go:9) MOVB $3, 2(AX)(CX*1) 0x0042 00066 (append.go:10) MOVQ AX, "".~r1+104(FP) 0x0047 00071 (append.go:10) MOVQ DX, "".~r1+112(FP) 0x004c 00076 (append.go:10) MOVQ BX, "".~r1+120(FP) 0x0051 00081 (append.go:10) ADDQ $72, SP 0x0055 00085 (append.go:10) RET 0x0056 00086 (append.go:9) LEAQ type.[]uint8(SB), AX 0x005d 00093 (append.go:9) MOVQ AX, (SP) 0x0061 00097 (append.go:9) MOVQ "".b+80(FP), BP 0x0066 00102 (append.go:9) MOVQ BP, 8(SP) 0x006b 00107 (append.go:9) MOVQ CX, 16(SP) 0x0070 00112 (append.go:9) MOVQ BX, 24(SP) 0x0075 00117 (append.go:9) MOVQ DX, 32(SP) 0x007a 00122 (append.go:9) PCDATA $0, $0 0x007a 00122 (append.go:9) CALL runtime.growslice(SB) 0x007f 00127 (append.go:9) MOVQ 40(SP), AX 0x0084 00132 (append.go:9) MOVQ 56(SP), BX 0x0089 00137 (append.go:8) MOVQ "".b+88(FP), CX 0x008e 00142 (append.go:9) MOVQ "".autotmp_0+64(SP), DX 0x0093 00147 (append.go:9) JMP 52 0x0095 00149 (append.go:9) NOP 0x0095 00149 (append.go:8) CALL runtime.morestack_noctxt(SB) 0x009a 00154 (append.go:8) JMP 0 After: "".s t=1 size=176 args=0x30 locals=0x40 0x0000 00000 (append.go:8) TEXT "".s(SB), $64-48 0x0000 00000 (append.go:8) MOVQ (TLS), CX 0x0009 00009 (append.go:8) CMPQ SP, 16(CX) 0x000d 00013 (append.go:8) JLS 151 0x0013 00019 (append.go:8) SUBQ $64, SP 0x0017 00023 (append.go:8) FUNCDATA $0, gclocals·6432f8c6a0d23fa7bee6c5d96f21a92a(SB) 0x0017 00023 (append.go:8) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB) 0x0017 00023 (append.go:9) MOVQ "".b+80(FP), CX 0x001c 00028 (append.go:9) LEAQ 3(CX), DX 0x0020 00032 (append.go:9) MOVQ "".b+88(FP), BX 0x0025 00037 (append.go:9) CMPQ DX, BX 0x0028 00040 (append.go:9) JGT $0, 81 0x002a 00042 (append.go:8) MOVQ "".b+72(FP), AX 0x002f 00047 (append.go:9) MOVB $1, (AX)(CX*1) 0x0033 00051 (append.go:9) MOVB $2, 1(AX)(CX*1) 0x0038 00056 (append.go:9) MOVB $3, 2(AX)(CX*1) 0x003d 00061 (append.go:10) MOVQ AX, "".~r1+96(FP) 0x0042 00066 (append.go:10) MOVQ DX, "".~r1+104(FP) 0x0047 00071 (append.go:10) MOVQ BX, "".~r1+112(FP) 0x004c 00076 (append.go:10) ADDQ $64, SP 0x0050 00080 (append.go:10) RET 0x0051 00081 (append.go:9) LEAQ type.[]uint8(SB), AX 0x0058 00088 (append.go:9) MOVQ AX, (SP) 0x005c 00092 (append.go:9) MOVQ "".b+72(FP), BP 0x0061 00097 (append.go:9) MOVQ BP, 8(SP) 0x0066 00102 (append.go:9) MOVQ CX, 16(SP) 0x006b 00107 (append.go:9) MOVQ BX, 24(SP) 0x0070 00112 (append.go:9) MOVQ DX, 32(SP) 0x0075 00117 (append.go:9) PCDATA $0, $0 0x0075 00117 (append.go:9) CALL runtime.growslice(SB) 0x007a 00122 (append.go:9) MOVQ 40(SP), AX 0x007f 00127 (append.go:9) MOVQ 48(SP), CX 0x0084 00132 (append.go:9) MOVQ 56(SP), BX 0x0089 00137 (append.go:9) ADDQ $3, CX 0x008d 00141 (append.go:9) MOVQ CX, DX 0x0090 00144 (append.go:8) MOVQ "".b+80(FP), CX 0x0095 00149 (append.go:9) JMP 47 0x0097 00151 (append.go:9) NOP 0x0097 00151 (append.go:8) CALL runtime.morestack_noctxt(SB) 0x009c 00156 (append.go:8) JMP 0 Observe that in the following sequence, we should use DX directly instead of using CX as a temporary register, which would make the new code a strict improvement on the old: 0x007f 00127 (append.go:9) MOVQ 48(SP), CX 0x0084 00132 (append.go:9) MOVQ 56(SP), BX 0x0089 00137 (append.go:9) ADDQ $3, CX 0x008d 00141 (append.go:9) MOVQ CX, DX 0x0090 00144 (append.go:8) MOVQ "".b+80(FP), CX Change-Id: I4ee50b18fa53865901d2d7f86c2cbb54c6fa6924 Reviewed-on: https://go-review.googlesource.com/21812 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Keith Randall <khr@golang.org>
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Josh Bleecher Snyder authored
Update #14921 Change-Id: I5c5816d0193757bf7465b1e09c27ca06897df4bf Reviewed-on: https://go-review.googlesource.com/21814 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Keith Randall <khr@golang.org>
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Brad Fitzpatrick authored
Fixes #15221 Change-Id: I9e927a2f604213338b4572f1a32d0247c58bdc60 Reviewed-on: https://go-review.googlesource.com/21798Reviewed-by:
Ian Lance Taylor <iant@golang.org>
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Klaus Post authored
This improves the short version of the writer test. First of all, it has a much quicker setup. Previously that could take up towards 0.5 second. Secondly, it will test all compression levels in short mode as well. Execution time is 1.7s/0.03s for normal/short mode. Change-Id: I275a21f712daff6f7125cc6a493415e86439cb19 Reviewed-on: https://go-review.googlesource.com/21800Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Klaus Post authored
This uses the SSA compiler to eliminate various unneeded bounds checks in loops and various lookups. This fixes the low hanging fruit, without any major code changes. name old time/op new time/op delta EncodeDigitsHuffman1e4-8 49.9µs ± 1% 48.1µs ± 1% -3.74% (p=0.000 n=10+9) EncodeDigitsHuffman1e5-8 476µs ± 1% 458µs ± 1% -3.58% (p=0.000 n=10+10) EncodeDigitsHuffman1e6-8 4.80ms ± 2% 4.56ms ± 1% -5.07% (p=0.000 n=10+9) EncodeDigitsSpeed1e4-8 305µs ± 3% 290µs ± 2% -5.03% (p=0.000 n=10+9) EncodeDigitsSpeed1e5-8 3.67ms ± 2% 3.49ms ± 2% -4.78% (p=0.000 n=9+10) EncodeDigitsSpeed1e6-8 38.3ms ± 2% 35.8ms ± 1% -6.58% (p=0.000 n=9+10) EncodeDigitsDefault1e4-8 361µs ± 2% 346µs ± 3% -4.12% (p=0.000 n=10+9) EncodeDigitsDefault1e5-8 5.24ms ± 2% 4.96ms ± 3% -5.38% (p=0.000 n=10+10) EncodeDigitsDefault1e6-8 56.5ms ± 3% 52.2ms ± 2% -7.68% (p=0.000 n=10+10) EncodeDigitsCompress1e4-8 362µs ± 2% 343µs ± 1% -5.20% (p=0.000 n=10+9) EncodeDigitsCompress1e5-8 5.26ms ± 3% 4.98ms ± 2% -5.48% (p=0.000 n=10+10) EncodeDigitsCompress1e6-8 56.0ms ± 4% 52.1ms ± 1% -7.01% (p=0.000 n=10+10) EncodeTwainHuffman1e4-8 70.9µs ± 3% 64.7µs ± 1% -8.68% (p=0.000 n=10+9) EncodeTwainHuffman1e5-8 556µs ± 2% 524µs ± 2% -5.84% (p=0.000 n=10+10) EncodeTwainHuffman1e6-8 5.54ms ± 3% 5.22ms ± 2% -5.70% (p=0.000 n=10+10) EncodeTwainSpeed1e4-8 294µs ± 3% 284µs ± 1% -3.71% (p=0.000 n=10+10) EncodeTwainSpeed1e5-8 2.59ms ± 2% 2.48ms ± 1% -4.14% (p=0.000 n=10+9) EncodeTwainSpeed1e6-8 25.6ms ± 1% 24.3ms ± 1% -5.28% (p=0.000 n=9+10) EncodeTwainDefault1e4-8 419µs ± 2% 396µs ± 1% -5.59% (p=0.000 n=10+9) EncodeTwainDefault1e5-8 6.23ms ± 4% 5.75ms ± 1% -7.83% (p=0.000 n=10+9) EncodeTwainDefault1e6-8 66.2ms ± 2% 61.4ms ± 1% -7.22% (p=0.000 n=10+10) EncodeTwainCompress1e4-8 426µs ± 1% 405µs ± 1% -4.97% (p=0.000 n=9+10) EncodeTwainCompress1e5-8 6.80ms ± 1% 6.32ms ± 1% -6.97% (p=0.000 n=9+10) EncodeTwainCompress1e6-8 74.6ms ± 3% 68.7ms ± 1% -7.90% (p=0.000 n=10+9) name old speed new speed delta EncodeDigitsHuffman1e4-8 200MB/s ± 1% 208MB/s ± 1% +3.88% (p=0.000 n=10+9) EncodeDigitsHuffman1e5-8 210MB/s ± 1% 218MB/s ± 1% +3.71% (p=0.000 n=10+10) EncodeDigitsHuffman1e6-8 208MB/s ± 2% 219MB/s ± 1% +5.32% (p=0.000 n=10+9) EncodeDigitsSpeed1e4-8 32.8MB/s ± 3% 34.5MB/s ± 2% +5.29% (p=0.000 n=10+9) EncodeDigitsSpeed1e5-8 27.2MB/s ± 2% 28.6MB/s ± 2% +5.29% (p=0.000 n=10+10) EncodeDigitsSpeed1e6-8 26.1MB/s ± 2% 27.9MB/s ± 1% +7.02% (p=0.000 n=9+10) EncodeDigitsDefault1e4-8 27.7MB/s ± 2% 28.9MB/s ± 3% +4.30% (p=0.000 n=10+9) EncodeDigitsDefault1e5-8 19.1MB/s ± 2% 20.2MB/s ± 3% +5.69% (p=0.000 n=10+10) EncodeDigitsDefault1e6-8 17.7MB/s ± 3% 19.2MB/s ± 2% +8.31% (p=0.000 n=10+10) EncodeDigitsCompress1e4-8 27.6MB/s ± 2% 29.1MB/s ± 1% +5.47% (p=0.000 n=10+9) EncodeDigitsCompress1e5-8 19.0MB/s ± 3% 20.1MB/s ± 2% +5.78% (p=0.000 n=10+10) EncodeDigitsCompress1e6-8 17.9MB/s ± 4% 19.2MB/s ± 1% +7.50% (p=0.000 n=10+10) EncodeTwainHuffman1e4-8 141MB/s ± 3% 154MB/s ± 1% +9.46% (p=0.000 n=10+9) EncodeTwainHuffman1e5-8 180MB/s ± 2% 191MB/s ± 2% +6.19% (p=0.000 n=10+10) EncodeTwainHuffman1e6-8 181MB/s ± 3% 192MB/s ± 2% +6.02% (p=0.000 n=10+10) EncodeTwainSpeed1e4-8 34.0MB/s ± 3% 35.3MB/s ± 1% +3.84% (p=0.000 n=10+10) EncodeTwainSpeed1e5-8 38.7MB/s ± 2% 40.3MB/s ± 1% +4.30% (p=0.000 n=10+9) EncodeTwainSpeed1e6-8 39.1MB/s ± 1% 41.2MB/s ± 1% +5.57% (p=0.000 n=9+10) EncodeTwainDefault1e4-8 23.9MB/s ± 2% 25.3MB/s ± 1% +5.91% (p=0.000 n=10+9) EncodeTwainDefault1e5-8 16.0MB/s ± 4% 17.4MB/s ± 1% +8.47% (p=0.000 n=10+9) EncodeTwainDefault1e6-8 15.1MB/s ± 2% 16.3MB/s ± 1% +7.76% (p=0.000 n=10+10) EncodeTwainCompress1e4-8 23.5MB/s ± 1% 24.7MB/s ± 1% +5.24% (p=0.000 n=9+10) EncodeTwainCompress1e5-8 14.7MB/s ± 1% 15.8MB/s ± 1% +7.50% (p=0.000 n=9+10) EncodeTwainCompress1e6-8 13.4MB/s ± 3% 14.6MB/s ± 1% +8.57% (p=0.000 n=10+9) Change-Id: I5c7e84c2f9ea4d38a2115995705eebb93387e22f Reviewed-on: https://go-review.googlesource.com/21759Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Martin Möhrmann authored
Change-Id: Id1c2e8e9d60588de866e8b6ca59cc83dd28f848f Reviewed-on: https://go-review.googlesource.com/21756Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Dmitry Vyukov authored
Change-Id: Id79eaa6d49dae80c334c7243b0a5bbcdcb9397d3 Reviewed-on: https://go-review.googlesource.com/21758Reviewed-by:
Mikio Hara <mikioh.mikioh@gmail.com>
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Marvin Stenger authored
Replace calls to bio.Bread with calls to io.ReadFull. Change-Id: I2ee8739d01e04a4da9c20b6ce7d1d5b89914b8ad Reviewed-on: https://go-review.googlesource.com/21750Reviewed-by:
Dave Cheney <dave@cheney.net>
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Emmanuel Odeke authored
Make execution panics implement Error as mandated by https://golang.org/ref/spec#Run_time_panics, instead of panics with strings. Fixes #14965 Change-Id: I7827f898b9b9c08af541db922cc24fa0800ff18a Reviewed-on: https://go-review.googlesource.com/21214Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Wisdom Omuya authored
Fixes #15217 Change-Id: Ib8f7af714197fd209e743f61f28a5b07c04a7f5c Reviewed-on: https://go-review.googlesource.com/21793Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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- 09 Apr, 2016 8 commits
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Emmanuel Odeke authored
Fixes #7215 Change-Id: I108171ef18cac66d0dc11ce3553c26fc49529807 Reviewed-on: https://go-review.googlesource.com/21790Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Brad Fitzpatrick authored
Thanks to deafgoat. Fixes #15215 Change-Id: I9fababc7ecd201ce86020a438e4faee95e7623a8 Reviewed-on: https://go-review.googlesource.com/21792Reviewed-by:
Emmanuel Odeke <emm.odeke@gmail.com> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Dmitry Vyukov authored
This reverts commit ab4c9298. Sysmon critically depends on system timer resolution for retaking of Ps blocked in system calls. See #14790 for an example of a program where execution time goes from 2ms to 30ms if timeBeginPeriod(1) is not used. We can remove timeBeginPeriod(1) when we support UMS (#7876). Update #14790 Change-Id: I362b56154359b2c52d47f9f2468fe012b481cf6d Reviewed-on: https://go-review.googlesource.com/20834Reviewed-by:
Austin Clements <austin@google.com> Run-TryBot: Dmitry Vyukov <dvyukov@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Alex Brainman <alex.brainman@gmail.com>
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Dave Cheney authored
Also, remove bio.Brdline. Change-Id: I3e0caed27a373fd71737cf6892de5e8fc208b776 Reviewed-on: https://go-review.googlesource.com/21783Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Dave Cheney <dave@cheney.net>
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Dave Cheney authored
Generated with honnef.co/go/unused There is a large amount of unused code in cmd/internal/obj/s390x but that can wait til the s390x port is merged. There is some unused code in cmd/internal/unvendor/golang.org/x/arch/arm/armasm but that should be addressed upstream and a new revision imported. Change-Id: I252c0f9ea8c5bb1a0b530a374ef13a0a20ea56aa Reviewed-on: https://go-review.googlesource.com/21782Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Dave Cheney <dave@cheney.net>
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Dave Cheney authored
Change-Id: Ie95b0b0d4f724f4769cf2d4f8063cb5019fa9bc9 Reviewed-on: https://go-review.googlesource.com/21781Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Dave Cheney authored
bio.BufReader was never used. bio.BufWriter was used to wrap an existing io.Writer, but the bio.Writer returned would not be seekable, so replace all occurences with bufio.Reader instead. Change-Id: I9c6779e35c63178aa4e104c17bb5bb8b52de0359 Reviewed-on: https://go-review.googlesource.com/21722Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Dave Cheney <dave@cheney.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Dave Cheney authored
This is a pre requesite of CL 21722 and removes a lot of unidiomatic boilerplate in the linker. Change-Id: If7491b88212b2be7b0c8c588e9c196839131f8ad Reviewed-on: https://go-review.googlesource.com/21780 Run-TryBot: Dave Cheney <dave@cheney.net> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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- 08 Apr, 2016 7 commits
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Michael Hudson-Doyle authored
Change-Id: I1780899255e22c16d7f8e9947609a1c284d7c42e Reviewed-on: https://go-review.googlesource.com/21690Reviewed-by:
David Crawshaw <crawshaw@golang.org> Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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David Chase authored
Be more careful about inserting instrumentation in racewalk. If the node being instrumented is an OAS, and it has a non- empty Ninit, then append instrumentation to the Ninit list rather than letting it be inserted before the OAS (and the compilation of its init list). This deals with the case that the Ninit list defines a variable used in the RHS of the OAS. Fixes #15091. Change-Id: Iac91696d9104d07f0bf1bd3499bbf56b2e1ef073 Reviewed-on: https://go-review.googlesource.com/21771Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com> Run-TryBot: David Chase <drchase@google.com>
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Dmitry Vyukov authored
This makes traces self-contained and simplifies trace workflow in modern cloud environments where it is simpler to reach a service via HTTP than to obtain the binary. Change-Id: I6ff3ca694dc698270f1e29da37d5efaf4e843a0d Reviewed-on: https://go-review.googlesource.com/21732 Run-TryBot: Dmitry Vyukov <dvyukov@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Hyang-Ah Hana Kim <hyangah@gmail.com>
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Michael Munday authored
The size of the int type in Go on s390x is 8 bytes, not 4. Change-Id: I1a71ce8c9925f3499abb61c1aa4f6fa2d2ec0d7e Reviewed-on: https://go-review.googlesource.com/21760Reviewed-by:
Bill O'Farrell <billotosyr@gmail.com> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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Emmanuel Odeke authored
Make package bytes consistent with strings by adding missing function ContainsRune. Fixes #15189 Change-Id: Ie09080b389e55bbe070c57aa3bd134053a805423 Reviewed-on: https://go-review.googlesource.com/21710 Run-TryBot: Rob Pike <r@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Rob Pike <r@golang.org>
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Michael Munday authored
Change-Id: I42ade65a91f3effc03dd663ee449410baa9f8ca8 Reviewed-on: https://go-review.googlesource.com/21740Reviewed-by:
Bill O'Farrell <billotosyr@gmail.com> Reviewed-by:
Minux Ma <minux@golang.org> Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Brad Fitzpatrick authored
Updates #15158 Change-Id: Icb3788152a7a5a9b0d56ea38da46d770ffdce413 Reviewed-on: https://go-review.googlesource.com/21763 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Matthew Dempsky <mdempsky@google.com>
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