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In the near future, we will utilize the busy-stats on each engine to approximate the C0 cycles of each, and use that as an input to a manual RPS mechanism. That entails having busy-stats always enabled and so we can remove the enable/disable routines and simplify the pmu setup. As a consequence of always having the stats enabled, we can also show the current active time via sysfs/engine/xcs/active_time_ns. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200429205446.3259-1-chris@chris-wilson.co.uk |
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