[Bug 83436] Sudden framerate drops in multiple games when compiling with -mtune=generic (as well with -mtune=pentium-mmx and older CPUs)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Aug 2 11:31:41 PDT 2015


--- Comment #35 from smoki <smoki00790 at gmail.com> ---
(In reply to Marek Olšák from comment #34)
> Is this issue still happening on current Mesa git?

 32bit apps on 32bit kernel are fine, as GTT_WC is disabled for X86_32:


 But now issue appear too for 64bit kernel using 32bit apps, so it is still an
issue. 64bit kernel and 64bit apps are not affected.

 Unrelated to this driver, but i also found that 32bit fglrx is also slow on
the same thing... GTT_WC while running some 32bit apps simply made things much
Of course no idea how to do anything with that driver to 100% approve that :)

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