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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Long pauses with Unreal demo Elemental on R9270X since : Always flush the HDP cache before submitting a CS to the GPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84662#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Long pauses with Unreal demo Elemental on R9270X since : Always flush the HDP cache before submitting a CS to the GPU"
href="https://bugs.freedesktop.org/show_bug.cgi?id=84662">bug 84662</a>
from <span class="vcard"><a class="email" href="mailto:adonai@xaker.ru" title="Chernovsky Oleg <adonai@xaker.ru>"> <span class="fn">Chernovsky Oleg</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=107438" name="attach_107438" title="bad gtt usage (Borderlands 2)">attachment 107438</a> <a href="attachment.cgi?id=107438&action=edit" title="bad gtt usage (Borderlands 2)">[details]</a></span>
bad gtt usage (Borderlands 2)
(In reply to smoki from <a href="show_bug.cgi?id=84662#c11">comment #11</a>)
<span class="quote">> (In reply to Chernovsky Oleg from <a href="show_bug.cgi?id=84662#c9">comment #9</a>)
> > I experience the same freezes (1-1.3 sec) every 10 sec in any Valve Source
> > engine-based games.
>
> Well open a new bug, sttuter/freezes can be of varios cause... hardware
> combinations, APU or dedicated card, on AMD procesor on Intel so what
> governor used, composite or not, vblank on or not, spilling freezes, some
> particular effect unoptimized, etc... so various causes could be, this one
> is i think only about GTT load and fps drop because of that, so if you are
> sure it is because of that (check with GALLIUM_HUD=fps,GTT-usage) than that
> is the same bug.</span >
I know what I'm talking about. It's this bug, so I've written here.
Here's the proof (Unreal Engine 3, though, I can provide it with any Valve game
at will). Spikes on the GTT usage have corresponding falls of the FPS.
Radeon R7 260X (BONAIRE)</pre>
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