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?
Here are a few alternate ideas off the top of my head:
* Rip out Linuxthreads, replace it with NGPT, and
start fixing from there? (Or does NGPT already fix this?)
* Rewrite Linux's setitimer(ITIMER_PROF,...) to set up an
interval timer for all threads of the thread group.
* Implement the profil() system call from Solaris
( http://ua1vm.ua.edu/cgi-bin/man-cgi?profil+2 )
What's your favorite idea for getting profiling of
multithreaded programs working on Linux?
Thanks,
Dan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Mar 15 2002 - 22:00:16 EST