intel driver gets slow as soon as I rotate on a 1920x1200 display
xhejtman at ics.muni.cz
Thu Jul 26 13:43:41 PDT 2007
On Mon, Jul 23, 2007 at 08:54:54AM -0700, Jesse Barnes wrote:
> > I just commited a typo fix for this, but I haven't a 915/945 mobile by hand
> > to test with fbc enabled. Could you test with latest git?
> Thanks Zhenyu, I did a quick scan last Thu. and didn't see anything, this
> should help.
> And currently, on 965, I've marked tiling as unsupported, which means
> framebuffer compression isn't enabled by default. You can still force it on
> using "Tiling" "true" and "FramebufferCompression" "true", but there are
> known rendering bugs; hopefully I can fix those soon.
I just found that the new memory allocation code forces either all buffers to
be tiled or none buffer is tiled. The previous version tiled at least back and
Now, if I use tiling, I got glxgears at 990FPS and ppracer at 33FPS. If none
buffer is tiled then I got glxgears at 200FPS and ppracer at 3.6FPS.
So, I guess this is the issue with slow down.
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