On 2014.04.10 08:43:40 +0200, Daniel Vetter wrote: > > At least in the case of mesa you _must_ use mesa (or whatever your gl > library is) to insert the MI_PERF cmd at just the rigth spots in the > command stream and ofc flush all outstanding vertices and similar things. > > If you want a global perf sampling support then I think we need to wire up > the time-based sampling the hw provides to the perf subsystem. And figure > out how to coordinate between mesa wanting to use OA and perf (probably > just reject mesa batches or something like that). > yeah, that'll be an interesting direction. > > Could we have a i915.enable_cmd_parser config that can disable this? > > As is I don't see a compelling reason. Also if you require the users of > your perf tuning tooling to use a module option, you're doing it wrong. > This stuff should Just Work. -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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