* Demi Marie Obenour: > On 11/8/22 18:46, Frank Ch. Eigler wrote: >> Demi Marie Obenour <demiobenour@xxxxxxxxx> writes: >> >>> Three other options I can think of: >>> [...] >> >> Another one: >> >> 4. Speed up out-of-context backtracer(s), possibly consuming >> kernel-perf-ringbuffer stack dumps, or possibly using another >> event source to trigger and work via ptrace and /proc/$pid/mem >> >> - FChE > > Kernel stack dumps will not work for programs (such as OCaml 5.0) > that use segmented stacks. A userspace ptracer might work if it > is only woken up when absolutely necessary, but I suspect it would > be slow due to syscall overhead. That is why I suggested the vDSO > dumper: it would run from the process’s own context. I'm pretty sure most of the sysprof users are not interested in profiling OCaml programs. So that limitation should not block sysprof improvements, I think. Thanks, Florian _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
