Re: [RFC i-g-t] igt/scripts: trace.pl to parse the i915 tracepoints

From: "Olinski, Krzysztof E" <krzysztof.e.olinski@intel.com>
To: "tursulin@ursulin.net" <tursulin@ursulin.net>,
	"chris@chris-wilson.co.uk" <chris@chris-wilson.co.uk>
Cc: "Intel-gfx@lists.freedesktop.org" <Intel-gfx@lists.freedesktop.org>
Subject: Re: [RFC i-g-t] igt/scripts: trace.pl to parse the i915 tracepoints
Date: Wed, 22 Feb 2017 11:58:49 +0000	[thread overview]
Message-ID: <1487764727.11936.3.camel@intel.com> (raw)
In-Reply-To: <20170222101011.GI10557@nuc-i3427.alporthouse.com>

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On Wed, 2017-02-22 at 10:10 +0000, Chris Wilson wrote:
> On Wed, Feb 22, 2017 at 10:03:33AM +0000, Tvrtko Ursulin wrote:
> > From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > 
> > Given a log file created via perf with some interesting trace
> > events enabled, this tool can generate the timeline graph of
> > requests getting queued, their dependencies resolved, sent to
> > the GPU for executing and finally completed.
> > 
> > This can be useful when analyzing certain classes of performance
> > issues. More help is available in the tool itself.
> > 
> > The tool will also calculate some overall per engine statistics,
> > like total time engine was idle and similar.
> > 
> > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> > ---
> > A bit rough around the edges but works for the majority of traces
> > I was feeding into it.
> > 
> > Wheter or not we want to add this to IGT I am not sure.
> 
> It has my vote.
> -Chris
> 

Definitely, this will be valuable - good starting point for undergoing
core perf validation efforts.

Thanks for sharing,
Krzysztof

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