Quoting Tvrtko Ursulin (2017-11-23 10:26:54) > From: Tvrtko Ursulin <[email protected]> > > When turning off the engines, and the pmu sampling, clear the previous > value as the current measurement should be 0. > > v2: Use a for-loop > v3: > * Move clearing to timer self-dis-arm to avoid race with parking. > * Clear frequency samples as well. > v4: > * Init frequency to idle_freq. (Chris Wilson) > > Signed-off-by: Tvrtko Ursulin <[email protected]> > Suggested-by: Chris Wilson <[email protected]> > Reviewed-by: Chris Wilson <[email protected]> (v3)
Ok, we know we still have a hole if the timer is running for both engine and frequency sampling at the time of parking, and we accept that this is just a step in the right direction to reduce the small statistical error. Reviewed-by: Chris Wilson <[email protected]> -Chris _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
