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    SubjectRe: libc/1427: gprof does not profile threads <synopsis of the problem (one li\ne)>
    On Wed, Mar 13, 2002 at 04:19:02PM -0800, Dan Kegel wrote:
    > Ulrich Drepper wrote:
    > >
    > > On Wed, 2002-03-13 at 15:17, Dan Kegel wrote:
    > >
    > > > So let's break the logjam and fix glibc's linuxthreads' pthread_create
    > > > to [support profiling multithreaded programs]
    > >
    > > I will add nothing like this. The implementation is broken enough and
    > > any addition just makes it worse. If you patch your own code you'll get
    > > what you want at your own risk.
    >
    > OK. What's the right way to fix this, then?

    Surely don't use timer for profiling.
    Have the compiler generate profiling calls both at function entry and exit
    and use rdtsc/whatever other register your machine has (or even better
    profiling registers) to note time of that function being entered/left.

    Jakub
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