Re: [Valgrind-users] Callgrind: where do I find the list of event names?

[Dallman, J. <joh...@si...>]

Philippe Waroquiers <phi...@sk...> wrote:

> Starting callgrind with default options, and then using
> kcachegrind on the resulting callgrind.out file, kcachegrind
> shows the nr of calls to the functions.

I'm trying to avoid using kcachegrind, because I need to automate
this process. We have tens of thousands of test cases we'll want
to feed through this and requiring human interaction is thus bad.

Josef Weidendorfer [mailto:Jos...@gm...] wrote:

> Yes. Call counts are special.

Aha.

> --tree=caller shows the callers of each function, with the call
> count in parenthesis.

Yup, and that output looks a lot easier to parse than the full
callgrind output. I have something odd in the output, though:
I have a lot of calls to functions with names that I recognise,
but which have a '2 appended to their names. These don't exist
in the source: any idea what they signify?

8,658,501  < ???:read__list'2 (5826x) [kid.out]
128,976,260  < ???:read_sub_list'2 (158404x) [kid.out]
2,107  < ???:relax'2 (43x) [kid.out]
2,416,508  < ???:REL_gen_external'2 (437x) [kid.out]

> Hmm. It should be easy to show the summed up call count for each
> function also without callers/callee display.

That would be nice if it could be added easily.

thanks, everyone,

--
John Dallman

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