[Intel-gfx] output stutters

[Brian J. Murrell]

On Wed, 2015-06-10 at 11:59 +0100, Chris Wilson wrote:
> 
> sudo perf record -g -a -c 1 -e i915:i915_gem_request_wait_begin is
> likely to capture the culprit. Though to be precise you need to look at
> wait_begin + wait_end to measure the stall (some waits are more harmless
> than others). As a first approximation just using perf will be good
> enough to get a few leads.

Thanks Chris.  But I no sooner posted that and a reboot later the
problem went away and has not come back since.  Good or bad depending on
your perspective I suppose.

Thanks for the response and suggestions though.  Much appreciated.

Cheers,
b.



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