Commit Graph

8 Commits

Author SHA1 Message Date
Dmitry Vyukov 7ae273923c cmd/trace: split large traces into parts
Trace viewer cannot handle traces larger than 256MB (limit on js string size):
https://github.com/catapult-project/catapult/issues/627
And even that is problematic (chrome hangs and crashes).
Split large traces into 100MB parts. Somewhat clumsy, but I don't see any other
solution (other than rewriting trace viewer). At least it works reliably now.

Fixes #15482

Change-Id: I993b5f43d22072c6f5bd041ab5888ce176f272b2
Reviewed-on: https://go-review.googlesource.com/22731
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2016-05-12 17:53:59 +00:00
Dmitry Vyukov babdbfb826 cmd/trace: make binary argument optional
1.7 traces embed symbol info and we now generate symbolized pprof profiles,
so we don't need the binary. Make binary argument optional as 1.5 traces
still need it.

Change-Id: I65eb13e3d20ec765acf85c42d42a8d7aae09854c
Reviewed-on: https://go-review.googlesource.com/22410
Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Austin Clements <austin@google.com>
2016-05-03 12:35:09 +00:00
Dmitry Vyukov 3fafe2e888 internal/trace: support parsing of 1.5 traces
1. Parse out version from trace header.
2. Restore handling of 1.5 traces.
3. Restore optional symbolization of traces.
4. Add some canned 1.5 traces for regression testing
   (http benchmark trace, runtime/trace stress traces,
    plus one with broken timestamps).

Change-Id: Idb18a001d03ded8e13c2730eeeb37c5836e31256
Reviewed-on: https://go-review.googlesource.com/21803
Run-TryBot: Dmitry Vyukov <dvyukov@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2016-04-11 17:56:44 +00:00
Dmitry Vyukov 0fb7b4cccd runtime: emit file:line info into traces
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>
2016-04-08 20:52:30 +00:00
David du Colombier 9538e4e73b cmd/trace: don't fail when no browser is available
When there is no browser available on the system,
we should print the URL instead of failing.

Change-Id: I4a2b099e17609394273eff150062c285d76bbac1
Reviewed-on: https://go-review.googlesource.com/13774
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
2015-08-21 20:02:23 +00:00
Dmitry Vyukov ae1ea2aa94 runtime/trace: add new package
Move tracing functions from runtime/pprof to the new runtime/trace package.

Fixes #9710

Change-Id: I718bcb2ae3e5959d9f72cab5e6708289e5c8ebd5
Reviewed-on: https://go-review.googlesource.com/12511
Reviewed-by: Russ Cox <rsc@golang.org>
2015-07-22 15:47:16 +00:00
Dmitry Vyukov 1b269463a5 cmd/trace: gracefully handle empty profiles
Return a meaningful message when a profile is empty.
Also rename "IO blocking" to "Network blocking",
currently only network blocking is captured.

Fixes #11098

Change-Id: Ib6f1292b8ade4805756fcb6696ba1fca8f9f39a9
Reviewed-on: https://go-review.googlesource.com/11243
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2015-06-18 14:46:49 +00:00
Dmitry Vyukov edadffa2f3 cmd/trace: add new command
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>
2015-02-20 18:31:25 +00:00