On Tue, Feb 11, 2014 at 6:17 PM, David Kastrup <d...@gnu.org> wrote:
> Looking in the Makefile, I just find support for coverage reports using
> gcov. Whatever is there with "profile" in it seems to be for
> profile-based compilation rather than using gprof.
> Now since I've managed to push most of the runtime for basic git-blame
> operation out of blame.c proper, it becomes important to figure out
> where most of the remaining runtime (a sizable part of that being system
> time) is being spent. Loop counts like that provided by gcov (or am I
> missing something here?) are not helpful for that, I think I rather need
> the kind of per-function breakdown that gprof provides.
> Is there a reason there are no prewired recipes or advice for using
> gprof on git? Is there a way to get the work done, namely seeing the
> actual distribution of call times (rather than iterations) using gcov so
> that this is not necessary?
Would perf help? No changes required, and almost no overhead, I think.
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