FAIR policy works better than FIFO for all known use cases and either matches or gets close to RR. Lets make it a default to improve the user experience especially with interactive workloads competing with heavy clients.
Signed-off-by: Tvrtko Ursulin <[email protected]> Cc: Christian König <[email protected]> Cc: Danilo Krummrich <[email protected]> Cc: Matthew Brost <[email protected]> Cc: Philipp Stanner <[email protected]> Cc: Pierre-Eric Pelloux-Prayer <[email protected]> --- drivers/gpu/drm/scheduler/sched_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c index 57c881c94737..5799522cbaef 100644 --- a/drivers/gpu/drm/scheduler/sched_main.c +++ b/drivers/gpu/drm/scheduler/sched_main.c @@ -84,13 +84,13 @@ #define CREATE_TRACE_POINTS #include "gpu_scheduler_trace.h" -int drm_sched_policy = DRM_SCHED_POLICY_FIFO; +int drm_sched_policy = DRM_SCHED_POLICY_FAIR; /** * DOC: sched_policy (int) * Used to override default entities scheduling policy in a run queue. */ -MODULE_PARM_DESC(sched_policy, "Specify the scheduling policy for entities on a run-queue, " __stringify(DRM_SCHED_POLICY_RR) " = Round Robin, " __stringify(DRM_SCHED_POLICY_FIFO) " = FIFO (default), " __stringify(DRM_SCHED_POLICY_FAIR) " = Fair."); +MODULE_PARM_DESC(sched_policy, "Specify the scheduling policy for entities on a run-queue, " __stringify(DRM_SCHED_POLICY_RR) " = Round Robin, " __stringify(DRM_SCHED_POLICY_FIFO) " = FIFO, " __stringify(DRM_SCHED_POLICY_FAIR) " = Fair (default)."); module_param_named(sched_policy, drm_sched_policy, int, 0444); static u32 drm_sched_available_credits(struct drm_gpu_scheduler *sched) -- 2.48.0
