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That is part of the kernel and not part of the mesa driver, so is out of context. The respective licence for intel_pm.c is:



/*
* Copyright © 2012 Intel Corporation
*
* Permission is...

Resolved. glamor is up and running tests right now on SandyBridge.

No. It doesn't fix that at all. It fixes the much rarer case where the GPU is reset successfully whilst the scanout was being flipped from one image to the next. Here, you have some processes causing...

Hmm. The QGears2 is not a very good benchmark in that the Image/Render/GL are not comparable and thanks to Qt do not measure what you think. The GL variant of the benchmark has no antialiasing,...

Yes, that result did surprise me. Running the test locally points towards a pixmap leak in the GTK+ oxygen-gtk theme - performance is trashed when you are running from swap. Assuming that the KDE...

Really? That's quite unexpected, and hopefully a clue as to what is going on there. In the past, I've found that those two particular gtkperf subtests are ratelimited by the gtkperf process itself...

s/double check/implement a much more accurate check/

The DDX first calls drmCheckModesettingSupported() on its device fd. However, one bug reporter managed to get past that and still have X bail...

The bug in handling relocations that require synchronisation and pagefaults whilst being interrupted by signals, and is common to all generations. However, it is pretty much restricted to only being...

I should stop trying to use marketing names, it never ends well.

The talk was at FOSDEM, not LCA, so no. We can be thankful to Michael that we have any coverage at all of this event.

If you were a little more specifc, we could help you to resolve your issue.

Yes, the tearing you see in Kwin's compositor is because they use MESA_copy_sub_buffer rather than composite the whole framebuffer and swap. MESA_copy_sub_buffer was originally created as an...

So the good news is that you do indeed have a system that supports pageflipping. However, as you rightly surmise, it requires an OpenGL application or compositor to replace the entire scanout buffer...

First note that all Intel hardware up to SandyBridge has functional vsync support with no greater cost than stalling the GPU until the blit can proceed.

The problem is that with the agressive...

No. The way to achieve that is to use pageflipping. Otherwise you will need to process a synchronized update on one pipe, then a synchronized updated on the second pipe, which is very likely miss the...

cairo-xlib tessellates the high-level paths from the user into trapezoids and sends those to the Xserver. The ddx then rasterises the trapezoids into a mask and composites that onto the destination....

Do you mind experimenting slightly to see what factors on your system appear to be limiting performance? I've just started to play with qtperf4 and the first Ironlake runs suggest that native...

I've been looking for a means of getting some metrics of driver performance from Qt, can you tell me where I might subscribe to your newsletter^W^W^W^W find qtperf?

google fails me,...

None of the logs in the test runs indicate the presence of a VGA connection (or any connection other than LVDS) so I cannot say for what reason it would not have supported the native resolution of...

So there was a GPU hang (cause unknown as the i915_error_state was not logged) which affected the gnome-shell results. Not sure why the disparity for lxde, but I did observe that pts fails to inhibit...