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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2014-01-20 09:32:50 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2014-01-20 09:32:50 +0000 |
| commit | de0797edac67e00b720dcc99d70b8e0f033a90b1 (patch) | |
| tree | dafd46822ad3b7080254f3da6ddb06555a4f220b /tools | |
| parent | 50a45a1cdd4d8319ba9358974d241069689591c5 (diff) | |
sna: Yield the processor if the kernel reports EAGAIN
An artifact of our kernel/userspace interaction is that under certain
circumstances the kernel will report EAGAIN in order for it to have CPU
time to run its own workqueues before it can process the userspace
request. We can be cooperative and yield ourselves rather than busy-spin
waiting for the scheduler to demote us.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions