On Tue, Jul 07, 2015 at 01:42:47PM +0300, Martin Peres wrote: > On 06/07/15 19:43, Kenneth Graunke wrote: > >On Monday, July 06, 2015 11:33:10 AM Chris Wilson wrote: > >>Rather than allocating a fresh page every time we clear a buffer, keep > >>that page around between invocations by tracking the last used offset > >>and only allocating a fresh page when we wrap. > >> > >>Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk> > >>--- > >> src/mesa/drivers/dri/i965/brw_meta_fast_clear.c | 17 ++++++++++++++--- > >> 1 file changed, 14 insertions(+), 3 deletions(-) > >This looks okay to me. Do you have any performance data to justify the > >extra complexity? > > I actually get a negative performance improvement on a customer > benchmark (-1.3%). Could it be because we are waiting on the VBO at > some point? > > What benchmark did you try to get a perf improvement?
For this something as simple and cpu bound as windowed glxgears: 14550 -> 15400 (+-30fps both sides). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
