[QA] resizing big images will get faster next week

[Greg Grossmeier]

<quote name="Željko Filipin" date="2013-07-16" time="19:42:24 +0200">
> On Mon, Jul 15, 2013 at 7:00 PM, Greg Grossmeier <greg at wikimedia.org> wrote:
> 
> > Yep :P But seriously, just "help greatly appreciated, where ever you
> > can".
> >
> 
> I think people (at least me) are more likely to help if they have clear
> guidelines what needs to be done. I am pretty busy this week with the
> workshop but I could take a look at this next week.

Yeah, apologies. I was having a hard time coming up with exactly how we
could test some of this stuff.

Right now the plan is to turn Vips on for PNGs over a certain size (see
https://bugzilla.wikimedia.org/show_bug.cgi?id=51370 ). Everything else
stays the way it is. We could enable more image size/types later as
VipsScaler is improved, but not yet.

We could get a suite of images of various sizes that are expected to be
scaled using Vips (within that limit suggested by Brian on bug 51370),
if we get an error instead of a valid png, then it's broken (probably
because of an OOM).

Is this something that could be done?

If it is, then we should have a bunch of known good images of various
sizes/types (png, jpg, gif, etc) that we throw at it to make sure we
don't break anything as we move forward with more Vips changes.

Thanks!

Greg

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