From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> >From patch 4: User feedback indicates significant performance gains are possible in specific games with non default RPS up/down thresholds. Expose these tunables via sysfs which will allow users to achieve best performance when running games and best power efficiency elsewhere. Note this patch supports non GuC based platforms only. References: https://gitlab.freedesktop.org/drm/intel/-/issues/8389 Issue 8389 suggests 10-15% performance gains are possible with tweaked thresholds. One question is are we able to find a "one size fits all" values. However regardless of that, given we already expose frequency controls in sysfs with the same reasoning of allowing system owners explicit control if so wanted, I think exposing the thresholds can be equally justified. Tvrtko Ursulin (4): drm/i915: Move setting of rps thresholds to init drm/i915: Record default rps threshold values drm/i915: Add helpers for managing rps thresholds drm/i915: Expose RPS thresholds in sysfs drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 104 ++++++++++++++++++++ drivers/gpu/drm/i915/gt/intel_gt_types.h | 3 + drivers/gpu/drm/i915/gt/intel_rps.c | 65 +++++++++--- drivers/gpu/drm/i915/gt/intel_rps.h | 4 + 4 files changed, 165 insertions(+), 11 deletions(-) -- 2.37.2