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Re: gprof
Ken Raeburn wrote:
On Sep 15, 2005, at 04:45, Michael Trimarchi wrote:
Hi all,
I'd like to profile multithread application using gprof, but I
cannot profile thread !!! why?
Is the ITIMER signal problem?
regards
Michael
I've tried this before... yes, depending on the system, you may need
to play some games after thread creation to start profiling in the
newly created thread, such as explicitly scheduling an interrupt
timer. But also, if you care about the accuracy of the results, you
may need to modify the C runtime support code for profiling, which
typically updates the per-function data in a manner that is not
thread-safe.
Unfortunately, I don't have any code to show you for either issue,
right now...
Ken
>But also, if you care about the accuracy of the results, you may need
to modify the C runtime support code for >profiling, which typically
updates the per-function data in a manner that is not thread-safe.
may you explain more precisely this point?
Regards
Michael