[Bug 83436] Sudden framerate drops in multiple games

https://bugs.freedesktop.org/show_bug.cgi?id=83436

--- Comment #20 from Andy Furniss adf.lists@gmail.com --- (In reply to comment #19)

(In reply to comment #18)

...

Just tried oibaf's radeonsi_dri.so to copy here on Debian (just to be sure :D) and it suffers from the same problem with -march=generic ;)

I mean -mtune=generic of course :).

Now to bisect where that SSE4.1 code start to compile this slow (4 minututes on Kabini just for that) :D Issue also not present on 64bit ;)

I haven't seen the perf issue on my pure 64 bit setup, but have noticed that the compile sits on sse4.1 for a while recently - just using one core, like it's blocking the other threads of a make -j5 till it's done.