On Wed, Jun 12, 2024 at 05:35:24PM +0100, Daniel P. Berrangé wrote: > It isn't as simple as changing the CFLAGS. QEMU used to check for > the CPU feature at startup, set a flag, and then later use that flag > to choose different codepaths, but this logic was removed. Avoiding > the flag check in hot-paths makes a perf difference. Can't QEMU upstream be convinced to make it configurable, perhaps with default requiring SSE4 and when configured/built to support even older HW take the performance hit to support it? Jakub -- _______________________________________________ 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
