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When the seconds param is given, the block and mutex profile endpoints
report the difference between two measurements collected the given
seconds apart. Historically, the block and mutex profiles have reported
the cumulative counts since the process start, and it turned out they
are more useful when interpreted along with the time duration.
Note: cpu profile and trace endpoints already accept the "seconds"
parameter. With this CL, the block and mutex profile endpoints will
accept the "seconds" parameter. Providing the "seconds" parameter
to other types of profiles is an error.
This change moves runtime/pprof/internal/profile to internal/profile and
adds part of merge logic from github.com/google/pprof/profile/merge.go to
internal/profile, in order to allow both net/http/pprof and runtime/pprof
to access it.
Fixes #23401
Change-Id: Ie2486f1a63eb8ff210d7d3bc2de683e9335fd5cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/147598
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
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The Go's heap profile contains four kinds of samples
(inuse_space, inuse_objects, alloc_space, and alloc_objects).
The pprof tool by default chooses the inuse_space (the bytes
of live, in-use objects). When analyzing the current memory
usage the choice of inuse_space as the default may be useful,
but in some cases, users are more interested in analyzing the
total allocation statistics throughout the program execution.
For example, when we analyze the memory profile from benchmark
or program test run, we are more likely interested in the whole
allocation history than the live heap snapshot at the end of
the test or benchmark.
The pprof tool provides flags to control which sample type
to be used for analysis. However, it is one of the less-known
features of pprof and we believe it's better to choose the
right type of samples as the default when producing the profile.
This CL introduces a new type of profile, "allocs", which is
the same as the "heap" profile but marks the alloc_space
as the default type unlike heap profiles that use inuse_space
as the default type.
'go test -memprofile=...' command is changed to use the new
"allocs" profile type instead of the traditional "heap" profile.
Fixes #24443
Change-Id: I012dd4b6dcacd45644d7345509936b8380b6fbd9
Reviewed-on: https://go-review.googlesource.com/102696
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Russ Cox <rsc@golang.org>
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Nothing needs internal/pprof anymore except the runtime/pprof tests.
Move the package here to prevent new dependencies.
Change-Id: Ia119af91cc2b980e0fa03a15f46f69d7f71d2926
Reviewed-on: https://go-review.googlesource.com/37165
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
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This reverts commit b33030a72754cb55d6ec137e79facacb398c9be4.
Reason for revert: We're going to try to get the code in this change
submitted in smaller, more carefully reviewed changes.
Change-Id: I4175f4b297f0e69fb78b11f9dc0bd82f27865be7
Reviewed-on: https://go-review.googlesource.com/32441
Reviewed-by: Russ Cox <rsc@golang.org>
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Original Change by Daria Kolistratova <daria.kolistratova@intel.com>
Added functions with suffix proto and stuff from pprof tool to translate
to protobuf. Done as the profile proto is more extensible than the legacy
pprof format and is pprof's preferred profile format. Large part was taken
from https://github.com/google/pprof tool. Tested by hand and compared the
result with translated by pprof tool, profiles are identical.
Fixes #16093
Change-Id: I2751345b09a66ee2b6aa64be76cba4cd1c326aa6
Reviewed-on: https://go-review.googlesource.com/32257
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
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This reverts commit 7d14401bcbee4a8ff33ac869ef5ebb156a179ab6.
Reason for revert: Doesn't build.
Change-Id: I766179ab9225109d9232f783326e4d3843254980
Reviewed-on: https://go-review.googlesource.com/32256
Reviewed-by: Russ Cox <rsc@golang.org>
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Added functions with suffix proto and stuff from pprof tool to translate
to protobuf. Done as the profile proto is more extensible than the legacy
pprof format and is pprof's preferred profile format. Large part was taken
from https://github.com/google/pprof tool. Tested by hand and compared the
result with translated by pprof tool, profiles are identical.
Fixes #16093
Change-Id: I5acdb2809cab0d16ed4694fdaa7b8ddfd68df11e
Reviewed-on: https://go-review.googlesource.com/30556
Run-TryBot: Michael Matloob <matloob@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Michael Matloob <matloob@golang.org>
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