On Tue, Jul 12, 2022 at 09:26:14AM +0200, Florian Weimer wrote: > * Marius Schwarz: > > and I don't think, this tasks needs to read the clock that often too. > > strace shouldn't see a system call here because clock_gettime should be > handled in the vDSO. This suggests something is wrong with the system > (unless it's some obscure variant that really doesn't have vDSO support).
It doesn't necessarily have to be something wrong with the system. The vDSO clock_gettime() works only with specific clocksources, typically TSC on x86_64. On some older HW it's not reliable enough to be selected by the kernel, or it could be a VM which doesn't have one that would work with migrations, etc. -- Miroslav Lichvar _______________________________________________ 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
