https://bugs.freedesktop.org/show_bug.cgi?id=56634

--- Comment #1 from Andy Furniss lists@andyfurniss.entadsl.com --- I see some slowdowns with etqw (can't test heaven) on HD4890 that seem to be caused by this.

It's not constant - in fact mostly etqw with current head is the fastest I've ever seen it.

It may, however, during a short timenetdemo just suddenly drop to 4fps for a few seconds, or it may start slow ~10fps then go full speed.

With this reverted I haven't seen any slowdowns (yet).

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.

https://bugs.freedesktop.org/show_bug.cgi?id=56634

--- Comment #5 from maxijac@free.fr --- Using kernel from linus's repo fixes this issue. Not sure if it is a "proper" fix, so I'll let you close the repoer if it should be closed.

(now I'm getting 40 fps in heaven , nice boost if we forget about the 3 fps thing)

https://bugs.freedesktop.org/show_bug.cgi?id=56634

maxijac@free.fr changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED

--- Comment #7 from maxijac@free.fr --- Using linux 3.8 fixes this so I'm closing.