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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This archive was generated by hypermail 2b29 : Fri Mar 15 2002 - 22:00:16 EST