On Fri, Jan 8, 2016 at 5:01 AM, Timothy Arceri <t_arc...@yahoo.com.au> wrote: > On Thu, 2016-01-07 at 19:57 -0500, Nicolai Hähnle wrote: >> Hi, >> >> this series is intended to address a (big) part of the performance >> problems >> that occur when games use an index buffer from a VBO together with >> vertex >> attributes supplied by user pointer. On a lower-end Radeon (Carrizo), >> it >> lifts This War Of Mine (the worst offender I've seen) from basically >> unplayable >> to an acceptable ~22fps. > > Hi Nicolai, > > A while back I added a SSE41 min/max optimisation for the INT path. I > never added it to BYTE/SHORT as the games I was benchmarking never hit > those paths. It would be interesting to know which path "This War Of > Mine" is hitting. > > A quick Google shows Carrizo should have SSE41 right?
AFAIK, the biggest performance killer is the CPU-GPU synchronization caused by mapping the buffer, not the min-max computation. Marek _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
