[Intel-gfx] [PATCH i-g-t 00/16] Introduction of plotting support

[Damien Lespiau]

On Mon, Jul 06, 2015 at 04:54:48PM +0200, Daniel Vetter wrote:
> On Mon, Jul 06, 2015 at 01:35:28PM +0100, Damien Lespiau wrote:
> > Long story short:
> >   http://entropy.lespiau.name/intel-gpu-tools/test_simple_plot.png
> >   http://entropy.lespiau.name/intel-gpu-tools/test_two_plots.png
> > 
> > I had fun with the previous week-end errand around igt_stats so did it again
> > with plots, gearing up towards, some day, generating reports directly in the
> > micro-bencharks. A couple of example of what can be generated:
> > 
> > This time, it's about plotting data. I started with some synthetic data but
> > it's only a matter of time until I look at actual data (I'd like to start with
> > some data upload micro-benchmarks). Anyway, here's what the API looks like
> > (more can be found in lib/tests/igt_plot.c):
> 
> Hm, not sure we need a plotting api in igt - thus far the split between
> igt and piglit was that igt is tests and piglit is running them,
> collecting results and presenting them.

I understand this is borderline: "why not reuse something in the myriad
of available tools". The idea is to be lessen the friction between
benchmarks and renerating useful data and reports. We can still get the
data out for further processing if needed, even from piglit if it ever
grows something like this.

I really don't want to rely on python and piglit for anything else than
the general test runner. Tools with a large dependency set are a pain on
ChromeOS and Android, so they will be useless there.

> There's also microbenchmarks in other gfx related testsuites, hence I
> think we should aim for something that's more generally useable.

Maybe, but then I don't know where those other micro benchmarks are,
usually all over the place? What do you suggest?

I think I'll go ahead and try to prove the point by going the full route
and generate a real micro-benchmark report. It should be easy enough to
revert all of that if judged unnecessary.

-- 
Damien