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| author |   Andres Rodriguez <andres.rodriguez@amd.com> | 2017-10-27 19:35:34 -0400 |
|---|---|---|
| committer |   Oded Gabbay <oded.gabbay@gmail.com> | 2017-10-27 19:35:34 -0400 |
| commit | 48e876a20e79566f1736413d4f42dc66f3ab2f16 (patch) | |
| tree | 94bdcbd76b1f8e206a22f373575ed81ac08c7be4 /drivers/gpu/drm/amd/amdkfd/kfd_priv.h | |
| parent | drm/amdkfd: wait only for IH work on IH exit (diff) | |
| download | linux-dev-48e876a20e79566f1736413d4f42dc66f3ab2f16.tar.xz linux-dev-48e876a20e79566f1736413d4f42dc66f3ab2f16.zip | |
drm/amdkfd: use a high priority workqueue for IH work
In systems under heavy load the IH work may experience significant
scheduling delays.
Under load + system workqueue:
Max Latency: 7.023695 ms
Avg Latency: 0.263994 ms
Under load + high priority workqueue:
Max Latency: 1.162568 ms
Avg Latency: 0.163213 ms
Further work is required to measure the impact of per-cpu settings on IH
performance.
Signed-off-by: Andres Rodriguez <andres.rodriguez@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 0aec5ca8a964..6a91a60c64cf 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -184,6 +184,7 @@ struct kfd_dev { /* Interrupts */ struct kfifo ih_fifo; + struct workqueue_struct *ih_wq; struct work_struct interrupt_work; spinlock_t interrupt_lock; |