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2015-03-10runtime: remove runtime frames from stacks in tracesDmitry Vyukov
Stip uninteresting bottom and top frames from trace stacks. This makes both binary and json trace files smaller, and also makes stacks shorter and more readable in the viewer. Change-Id: Ib9c80ccc280504f0e235f867f53f1d2652c41583 Reviewed-on: https://go-review.googlesource.com/5523 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
2015-02-27runtime/pprof: skip tests that fork on darwin/armDavid Crawshaw
Change-Id: I9b08b74214e5a41a7e98866a993b038030a4c073 Reviewed-on: https://go-review.googlesource.com/6251 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2015-02-23runtime/pprof: make TestBlockProfile more robustShenghou Ma
It's using debug mode of pprof.writeBlock, so the output actually goes through text/tabwriter. It is possible that tabwriter expands each tab into multiple tabs in certain cases. For example, this output has been observed on the new arm64 port: 10073805 1 @ 0x1088ec 0xd1b8c 0xd0628 0xb68c0 0x867f4 # 0x1088ec sync.(*Cond).Wait+0xfc /home/minux/go.git/src/sync/cond.go:63 # 0xd1b8c runtime/pprof_test.blockCond+0x22c /home/minux/go.git/src/runtime/pprof/pprof_test.go:454 # 0xd0628 runtime/pprof_test.TestBlockProfile+0x1b8 /home/minux/go.git/src/runtime/pprof/pprof_test.go:359 # 0xb68c0 testing.tRunner+0x140 /home/minux/go.git/src/testing/testing.go:447 10069965 1 @ 0x14008 0xd1390 0xd0628 0xb68c0 0x867f4 # 0x14008 runtime.chansend1+0x48 /home/minux/go.git/src/runtime/chan.go:76 # 0xd1390 runtime/pprof_test.blockChanSend+0x100 /home/minux/go.git/src/runtime/pprof/pprof_test.go:396 # 0xd0628 runtime/pprof_test.TestBlockProfile+0x1b8 /home/minux/go.git/src/runtime/pprof/pprof_test.go:359 # 0xb68c0 testing.tRunner+0x140 /home/minux/go.git/src/testing/testing.go:447 10069706 1 @ 0x108e0c 0xd193c 0xd0628 0xb68c0 0x867f4 # 0x108e0c sync.(*Mutex).Lock+0x19c /home/minux/go.git/src/sync/mutex.go:67 # 0xd193c runtime/pprof_test.blockMutex+0xbc /home/minux/go.git/src/runtime/pprof/pprof_test.go:441 # 0xd0628 runtime/pprof_test.TestBlockProfile+0x1b8 /home/minux/go.git/src/runtime/pprof/pprof_test.go:359 # 0xb68c0 testing.tRunner+0x140 /home/minux/go.git/src/testing/testing.go:447 Change-Id: I3bef778c5fe01a894cfdc526fdc5fecb873b8ade Signed-off-by: Shenghou Ma <minux@golang.org> Reviewed-on: https://go-review.googlesource.com/5554 Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2015-02-20cmd/trace: add new commandDmitry Vyukov
Trace command allows to visualize and analyze traces. Run as: $ go tool trace binary trace.file The commands opens web browser with the main page, which contains links for trace visualization, blocking profiler, network IO profiler and per-goroutine traces. Also move trace parser from runtime/pprof/trace_parser_test.go to internal/trace/parser.go, so that it can be shared between tests and the command. Change-Id: Ic97ed59ad6e4c7e1dc9eca5e979701a2b4aed7cf Reviewed-on: https://go-review.googlesource.com/3601 Reviewed-by: Andrew Gerrand <adg@golang.org>
2015-01-30runtime: fix system memory allocator on plan9Dmitry Vyukov
The following line in sysFree: n += (n + memRound) &^ memRound doubles value of n (n += n). Which is wrong and can lead to memory corruption. Fixes #9712 Change-Id: I3c141b71da11e38837c09408cf4f1d22e8f7f36e Reviewed-on: https://go-review.googlesource.com/3602 Reviewed-by: David du Colombier <0intro@gmail.com>
2015-01-30runtime: fix trace ticks frequency on windowsDmitry Vyukov
Change-Id: I8c7fcc7705070bc9979e39d08a4c9b2870087a08 Reviewed-on: https://go-review.googlesource.com/3500 Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
2015-01-28runtime/pprof: skip trace tests on solaris and windowsDmitry Vyukov
Coarse-grained test skips to fix bots. Need to look closer at windows and nacl failures. Change-Id: I767ef1707232918636b33f715459ee3c0349b45e Reviewed-on: https://go-review.googlesource.com/3416 Reviewed-by: Aram Hăvărneanu <aram@mgk.ro> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-01-28runtime/pprof: add tests for tracerDmitry Vyukov
Change-Id: I832a433f0f2fc10b0a2fea0bfb003a988fc2c81b Reviewed-on: https://go-review.googlesource.com/2039 Reviewed-by: Russ Cox <rsc@golang.org>
2015-01-28runtime/pprof: add tracing supportDmitry Vyukov
runtime/pprof part of tracing functionality: https://docs.google.com/document/u/1/d/1FP5apqzBgr7ahCCgFO-yoVhk4YZrNIDNf9RybngBc14/pub Full change: https://codereview.appspot.com/146920043 Change-Id: I3143a569cbd33576f19ca47308d1ff5200d8c955 Reviewed-on: https://go-review.googlesource.com/1452 Reviewed-by: Russ Cox <rsc@golang.org>
2015-01-20runtime/pprof: ignore CPU profile test failures in QEMUBurcu Dogan
Fixes #9605 Change-Id: Iafafa4c1362bbd1940f8e4fb979f72feae3ec3ad Reviewed-on: https://go-review.googlesource.com/3000 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2014-11-11[dev.cc] runtime: convert scheduler from C to GoRuss Cox
The conversion was done with an automated tool and then modified only as necessary to make it compile and run. [This CL is part of the removal of C code from package runtime. See golang.org/s/dev.cc for an overview.] LGTM=r R=r, daniel.morsing CC=austin, dvyukov, golang-codereviews, iant, khr https://golang.org/cl/172260043
2014-10-17runtime/pprof: fix memory profiler testDmitriy Vyukov
Don't use cmd/pprof as it is not necessary installed and does not work on nacl and plan9. Instead just look at the raw profile. LGTM=crawshaw, rsc R=golang-codereviews, crawshaw, 0intro, rsc CC=golang-codereviews https://golang.org/cl/159010043
2014-10-17runtime/pprof: fix testRuss Cox
gogo called from GC is okay for the same reasons that gogo called from System or ExternalCode is okay. All three are fake stack traces. Fixes #8408. LGTM=dvyukov, r R=r, dvyukov CC=golang-codereviews https://golang.org/cl/152580043
2014-10-16runtime/pprof: disable new memory testRuss Cox
It cannot run 'go tool pprof'. There is no guarantee that's installed. It needs to build a temporary pprof binary and run that. It also needs to skip the test on systems that can't build and run binaries, namely android and nacl. See src/cmd/nm/nm_test.go's TestNM for a template. Update #8867 Status: Accepted TBR=dvyukov CC=golang-codereviews https://golang.org/cl/153710043
2014-10-16runtime: fix memory profilerDmitriy Vyukov
There are 3 issues: 1. Skip argument of callers is off by 3, so that all allocations are deep inside of memory profiler. 2. Memory profiling statistics are not updated after runtime.GC. 3. Testing package does not update memory profiling statistics before capturing the profile. Also add an end-to-end test. Fixes #8867. LGTM=rsc R=rsc CC=golang-codereviews https://golang.org/cl/148710043
2014-09-09undo CL 140110043 / 17b5fc2aa130Alex Brainman
I have found better approach, then longer wait. See CL 134360043 for details. ««« original CL description runtime/pprof: adjust cpuHogger so that tests pass on windows builders LGTM=rsc R=dvyukov, rsc CC=golang-codereviews https://golang.org/cl/140110043 »»» LGTM=dave R=golang-codereviews, dave, dvyukov CC=golang-codereviews https://golang.org/cl/133500043
2014-09-08build: move package sources from src/pkg to srcRuss Cox
Preparation was in CL 134570043. This CL contains only the effect of 'hg mv src/pkg/* src'. For more about the move, see golang.org/s/go14nopkg.
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