[Mesa-dev] [PATCH] i965: Improve (i.e. remove) some grf-to-mrf unnecessary moves

[Segovia, Benjamin]

vblank_mode=0. Are you sure? The performance become a disaster with it (i just tried).


I am looking at intel_gpu_top from intel-gpu-tools. They sound great :)

________________________________________
From: Eric Anholt [eric at anholt.net]
Sent: Monday, July 26, 2010 5:43 PM
To: Segovia, Benjamin; mesa-dev at lists.freedesktop.org
Subject: Re: [Mesa-dev] [PATCH] i965: Improve (i.e. remove) some grf-to-mrf unnecessary moves

On Sun, 25 Jul 2010 21:31:29 -0700, "Segovia, Benjamin" <benjamin.segovia at intel.com> wrote:
> Also, is there any way to completely deactivate all forms of
> synchronization for the display? There are some posts related to
> that. I would like to swap the frame buffers with no wait (if it is
> possible). Otherwise, it is still hard to monitor the performance
> changes.

vblank_mode=0 in the environment (can also be set globally with driconf)

Also, if you haven't found it yet, intel_gpu_top from intel-gpu-tools
can be useful in seeing what pipeline stages are busy.