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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - R9270X pyrit benchmark perf regressions with latest kernel/llvm"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82050#c35">Comment # 35</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - R9270X pyrit benchmark perf regressions with latest kernel/llvm"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82050">bug 82050</a>
from <span class="vcard"><a class="email" href="mailto:adf.lists@gmail.com" title="Andy Furniss <adf.lists@gmail.com>"> <span class="fn">Andy Furniss</span></a>
</span></b>
<pre>(In reply to <a href="show_bug.cgi?id=82050#c33">comment #33</a>)
<span class="quote">> (In reply to <a href="show_bug.cgi?id=82050#c28">comment #28</a>)
> > > I submitted the change reverting the behaviour of PIPE_USAGE_STREAM for
> > > review, but it's strange: I couldn't notice any significant difference in
> > > stutter in Valley regardless of any of these changes.
>
> Also, according to
> GALLIUM_HUD=requested-VRAM+VRAM-usage,requested-GTT+GTT-usage, Valley only
> seems to allocate about 10-20 MB for streaming BOs, so I'm not sure why
> putting them in VRAM or not makes such a big difference for you.
>
>
> > > BTW, what CPU are you using?
> >
> > It's an AMD Phenom II x4 965be.
>
> I assume the chipset for that doesn't support PCIe 3.0, does it? I wonder if
> maybe streaming BOs should be in VRAM with PCIe 3.0 but not with PCIe 2.0.</span >
Yea I am PCIE 2.0.
Other settings which may or may not be relavent -
vblank_mode=0, swapbufferswait off, 1920x1080 fullscreen, quality high,
antialiasing off.
I tried with hud and see 10-20MB requested with the stream change reverted and
8kb with it.
The fps counter on hud does show the pauses - though even the good case looks
bad on that - but the biggest pauses it shows are between scenes when the
screen has faded to black, I guess you kind of expect something to be loading
then.
I'll upload a couple of screens.</pre>
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