When the -count flag is provided,
instead of having each run overwrite the previous profile,
add a count suffix to the profile filename.
Then you can combine the profiles with
go tool pprof `go tool -n compile` <all profile files here>
This was done for CPU profiles in https://golang.org/cl/39718.
Change-Id: I4aa66d745fe18088655fc1d9cf3ecf29f68370bb
Reviewed-on: https://go-review.googlesource.com/c/tools/+/166523
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
If GOROOT is unset (as is common now),
then the output of "go env GOROOT" may
differ from the GOROOT inferred by alternate
compilers being executed and also from the
value of runtime.GOROOT() inside compilebench,
used by go/build. Harmonize all of these by
setting GOROOT explicitly (will fix subcommands)
and by invoking the go command to learn about
packages instead of assuming go/build has any
idea what it's doing.
Change-Id: If97aa76cc2afec11a8404975f39329db7eb452e0
Reviewed-on: https://go-review.googlesource.com/109516
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: David Chase <drchase@google.com>
The "go" command is a random "go" in the environment, not
necessarily the one under test. Use the go command in the
goroot we're testing.
This CL removes the need to add $GOROOT/bin to your path
before running compilebench.
Change-Id: Ieb7f441f8287105e13446006e73b760d80e51e03
Reviewed-on: https://go-review.googlesource.com/42932
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This reverts commit 3aa1caa08a.
Reason for revert: benchstat is preferred to benchcmp
Change-Id: I9772eb342fb631a68511986d832bb1444766afdc
Reviewed-on: https://go-review.googlesource.com/42027
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Sometimes, as with CL 41493, or when investigating
a reported issue, there's a package of interest
that is not part of the standard compilebench suite.
Add a -pkg flag to allow easy access to the compilebench
set of goodies (allocs, object file stats) without
having to edit and reinstall compilebench itself,
which is what I have been doing.
Change-Id: Id6ca6356cae062208f8686c0cb597ed45fc861c0
Reviewed-on: https://go-review.googlesource.com/41627
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Apparently there was a typo during initial import,
and compilebench was placed at the top level,
rather than in the cmd subdirectory. Oops. Fix that.
Change-Id: Ibea9ed132dca26c022ea02933defec9534105f18
Reviewed-on: https://go-review.googlesource.com/39792
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
