On Wed, Jul 6 2022 at 09:26:44 AM -0400, Marek Polacek
<polacek@xxxxxxxxxx> wrote:
I think you may be underestimating how much even 1% matters.
For Fedora Workstation, the primary concern should be to make sure
sysprof works nicely. That's our profiling tool, and it currently
doesn't work well at all with Fedora binaries due to lack of frame
pointers. The best way to improve the performance of Fedora
applications is currently to profile upstream binaries instead, which
is awkward and disappointing.
I don't understand the technical details here and I will not take a
position on what flags we use, but I'm concerned the goals here seem
misplaced. We should surely accept a much bigger performance hit than
1% if it improves developer experience and facilitates profiling, since
profiling allows us to make performance improvements that are orders of
magnitude larger than 1%. Please find some way to make sysprof work
well. Currently that requires frame pointers.
Michael
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