On Thu, Nov 20, 2014 at 3:10 PM, Mark Janes <[email protected]> wrote: > Ben Widawsky <[email protected]> writes: > >> On Tue, Nov 18, 2014 at 02:48:09PM -0800, Mark Janes wrote: >>> Ilia Mirkin <[email protected]> writes: >>> >>> > FWIW, on nv50 and nvc0, EXT_timer_query time-elapsed and >>> > ARB_timer_query query GL_TIMESTAMP reliably fail, and the rest >>> > reliably pass. I don't remember ever seeing inconsistent behaviour. >>> > FWIW I don't really know what these extensions do, or what the tests >>> > check for, but just thought I'd provide the data point. >>> >>> We probably see the failure more often because we run test with gbm, so >>> the CPU is consistently pegged on all cores. Comparing cpu times with >>> gpu times is likely to be error-prone in this situation. >>> >>> Since it only affects our automated system, we'll exclude it when we >>> invoke piglit. >>> >>> -Mark >> >> I think we should change the "Couldn't find appropriate number of >> iterations" to >> a skip. That seems to be the common failure on GBM (for me). All other >> failures >> are likely to be real^winteresting failures. > > The failure I've seen on the older machines is "GPU time didn't match > CPU time". I've already disabled this test in our environment, so it's > a non-issue.
FWIW "GPU time didn't match CPU time" is the reason for the nv50/nvc0 failures as well: http://people.freedesktop.org/~imirkin/nv50-comparison/nv92-2014-03-09-mupuf/spec/ARB_timer_query/query%20GL_TIMESTAMP.html http://people.freedesktop.org/~imirkin/nv50-comparison/nv92-2014-03-09-mupuf/spec/EXT_timer_query/time-elapsed.html http://people.freedesktop.org/~imirkin/nvc0-comparison/nve7-2014-06-06-mupuf-gs5/spec/ARB_timer_query/query%20GL_TIMESTAMP.html http://people.freedesktop.org/~imirkin/nvc0-comparison/nve7-2014-06-06-mupuf-gs5/spec/EXT_timer_query/time-elapsed.html The gpu time is like 5e-6 while cpu time is like 0.1. -ilia _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
