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authorNirmoy Das <nirmoy.aiemd@gmail.com>2020-06-25 14:07:23 +0200
committerChristian König <christian.koenig@amd.com>2020-06-26 14:16:29 +0200
commitd41a39dda1407ff50c7c4bfbd307c188f1ae364b (patch)
treef668464bee4abac9f7f2f5ff445b80ad499acda0 /include/drm
parent0dc9b286b8d2c219a55f6ad05d144aa4da495e97 (diff)
drm/scheduler: improve job distribution with multiple queues
This patch uses score to select a new drm scheduler for better loadbalance between multiple drm schedulers instead of num_jobs. Below are test results after running amdgpu_test for ~10 times. Before this patch: sched_name num of many times it got schedule ========= ================================== sdma0 1463 sdma1 198 comp_1.0.1 280 After this patch: sched_name num of many times it got schedule ========= ================================== sdma0 925 sdma1 928 comp_1.0.1 177 comp_1.1.1 44 comp_1.2.1 43 comp_1.3.1 44 Signed-off-by: Nirmoy Das <nirmoy.das@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/373000/ Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/gpu_scheduler.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/drm/gpu_scheduler.h b/include/drm/gpu_scheduler.h
index a21b3b92135a..b9780ae9dd26 100644
--- a/include/drm/gpu_scheduler.h
+++ b/include/drm/gpu_scheduler.h
@@ -263,7 +263,7 @@ struct drm_sched_backend_ops {
* @job_list_lock: lock to protect the ring_mirror_list.
* @hang_limit: once the hangs by a job crosses this limit then it is marked
* guilty and it will be considered for scheduling further.
- * @num_jobs: the number of jobs in queue in the scheduler
+ * @score: score to help loadbalancer pick a idle sched
* @ready: marks if the underlying HW is ready to work
* @free_guilty: A hit to time out handler to free the guilty job.
*
@@ -284,8 +284,8 @@ struct drm_gpu_scheduler {
struct list_head ring_mirror_list;
spinlock_t job_list_lock;
int hang_limit;
- atomic_t num_jobs;
- bool ready;
+ atomic_t score;
+ bool ready;
bool free_guilty;
};