drm/i915/gvt: Audit and shadow workload during ELSP writing

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Let the workload audit and shadow ahead of vGPU scheduling, that
will eliminate GPU idle time and improve performance for multi-VM.

The performance of Heaven running simultaneously in 3VMs has
improved 20% after this patch.

v2:Remove condition current->vgpu==vgpu when shadow during ELSP
writing.

Signed-off-by: Ping Gao <ping.a.gao@intel.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

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Ping Gao 2017-06-29 12:22:43 +08:00 • committed by Zhenyu Wang

parent 89ea20b930

commit d0302e7400

3 changed files with 19 additions and 0 deletions

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11

drivers/gpu/drm/i915/gvt/execlist.c

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7

drivers/gpu/drm/i915/gvt/scheduler.c

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1

drivers/gpu/drm/i915/gvt/scheduler.h

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