On Tue, 21 Jun 2011 15:24:24 -0700, Jesse Barnes <jbar...@virtuousgeek.org> wrote: > The ring frequency scaling table tells the PCU to treat certain GPU > frequencies as if they were a given CPU frequency for purposes of > scaling the ring frequency. Normally the PCU will scale the ring > frequency based on the CPU P-state, but with the table present, it will > also take the GPU frequency into account. The scaling_factor used in > this patch may not be ideal, but is enough to increase performance in > nexuiz on a 1366x768 panel by about 20%.
Am I right in thinking that the improvement offered by these new defaults is dependent upon the previous values programmed by the BIOS? On my desktop SNB, I only see a marginal improvement (<~1%) for games and similarly small differences for cairo-gl/xlib. Plus they also revealed my confusion over dev_priv->min_delay is actually min_freq on SNB. Evil. :-p -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
