On 7/7/22 10:46, Frank Ch. Eigler wrote: > > ngompa13 wrote: > >> [...] >> I agree, this is a completely unacceptable statement to make. The >> problem isn't sysprof, the problem is that profiling is garbage on >> Linux by default. > > That's an overstatement. > >> And while maybe most developers may not bother to do profiling right >> now, we don't know if they wouldn't if profiling tools *worked*. > > You said the problem isn't sysprof. Userspace profiling tools can fully > unwind with dwarf / .eh-frame if they make the effort. Several do.
The problem is that doing so has unacceptable performance. I believe perf actually winds up doing so offline because doing so online is too slow. That is why a different solution is needed, one that allows the unwinding to happen efficiently without requiring frame pointers. -- Sincerely, Demi Marie Obenour (she/her/hers) _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
