* Daan De Meyer via devel: >> If we can get SHSTK to work, the value of the DWARF integration and >> performance work will diminish fairly quickly because most developers >> will soon have CPUs with fairly deep (32 entry) LBR buffers, SHSTK >> support, or both. > > This seems like a fairly bold assumption. I also want to add that as > discussed in the proposal, we want to enable profiling not just on our > laptops, but across our entire fleet that's running various > generations of hardware. We can't simply replace all of our hardware > just to get shadow stack support unfortunately. So we can't rely on > new hardware features to get stacktraces. You still might have LBR buffers deep enough for your purposes, I think that's worth checking. They have been around for much longer (on Intel). Does your use case actually involve high-frequency time-based profiling, or is it more about being able to get the data at all, and process it further using BPF? 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 on the list, report it: https://pagure.io/fedora-infrastructure
