https://bugs.freedesktop.org/show_bug.cgi?id=56634
--- Comment #3 from Andy Furniss lists@andyfurniss.entadsl.com --- (In reply to comment #2)
Do you mean it's slower than without the commit or is it running mostly at the same speed when it's slowing down?
It's way slower than without the commit, but only temporarily then it recovers.
In case you have etqw, I am testing @1920x1080 fullscreen with everything turned on/up as high as possible.
I've found another issue, but it's not related to this or llvm and could be quite old as I've not left etqw running for ~30 mins for some months.
The issue is I run out of mem (4 gig). I'll open a new bug when I've had more time to test with older kernels.