Comment # 25
on bug 83436
from smoki
(In reply to comment #24) > (In reply to comment #23) > > (In reply to comment #22) > > > (In reply to comment #21) > > > > (In reply to comment #20) > > > > > (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. > > > > > > > > Oh i bisected that ine, it takes 200X more time to compile on 32bit :D , > > > > actually compile libmesa_gallium i think this is the commit: > > > > > > > > http://cgit.freedesktop.org/mesa/mesa/commit/ > > > > ?id=d55f77b503ab7b59ecdd8f31c4f7dc498710e75b > > > > > > For this look, here: > > > > > > http://lists.freedesktop.org/archives/mesa-dev/2014-August/065823.html > > > > > > Greetings and happy 'bisecting'...;-) > > > > > > Dieter > > > > So what is the solution for that after one month? Simply to use -O0 maybe :) > > Ping Jason Ekstrand, maybe 8-) Ping.
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