Re: [PATCH V5 1/1] perf tool:perf diff support for different binaries
From: Arnaldo Carvalho de Melo
Date: Mon Dec 01 2014 - 17:35:51 EST
Em Fri, Nov 21, 2014 at 10:55:48AM -0500, kan.liang@xxxxxxxxx escreveu:
> From: Kan Liang <kan.liang@xxxxxxxxx>
> Currently, the perf diff only works with same binaries. That's because
> it compares the symbol start address. It doesn't work if the perf.data
> comes from different binaries. This patch matches the function names.
> Here is a simple examples (Only change f2 and f3 functions location.)
> There is no change in behavior, but the old perf diff display the wrong
> differential profile.
[acme@zoo linux]$ am /wb/1.patch
Applying: perf tool:perf diff support for different binaries
/home/acme/git/linux/.git/rebase-apply/patch:23: trailing whitespace.
If no parameters are passed the samples will be sorted by dso and
/home/acme/git/linux/.git/rebase-apply/patch:26: trailing whitespace.
warning: 2 lines add whitespace errors.
+ Stopped am /wb/1.patch
Fixing this up this time.
chmod +x .git/hooks/*
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