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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW Bisected] lightsmark performance decreased by 15%-20%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90112#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW Bisected] lightsmark performance decreased by 15%-20%"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90112">bug 90112</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>(In reply to Chris Wilson from <a href="show_bug.cgi?id=90112#c6">comment #6</a>)
<span class="quote">> Created <span class=""><a href="attachment.cgi?id=115243" name="attach_115243" title="Use coarse throttling first">attachment 115243</a> <a href="attachment.cgi?id=115243&action=edit" title="Use coarse throttling first">[details]</a></span> <a href='page.cgi?id=splinter.html&bug=90112&attachment=115243'>[review]</a> [review]
> Use coarse throttling first
>
> This patch should work around the change in behaviour for very, very slow
> render clients. But it would be more interesting to measure the impact of
> the libdrm patch first.</span >
Also requires
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c
b/src/mesa/drivers/dri/i965/intel_screen.c
index 5a9207a..4dc54e5 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -174,8 +174,10 @@ intel_dri2_flush_with_flags(__DRIcontext *cPriv,
if (flags & __DRI2_FLUSH_DRAWABLE)
intel_resolve_for_dri2_flush(brw, dPriv);
- if (reason == __DRI2_THROTTLE_SWAPBUFFER)
+ if (reason == __DRI2_THROTTLE_SWAPBUFFER) {
+ brw->need_flush_throttle = true;
brw->need_swap_throttle = true;
+ }
if (reason == __DRI2_THROTTLE_FLUSHFRONT)
brw->need_flush_throttle = true;</pre>
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