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Re: 2.13.40 regtests

From: Neil Puttock
Subject: Re: 2.13.40 regtests
Date: Fri, 26 Nov 2010 00:14:17 +0000

On 26 November 2010 00:00, Graham Percival <address@hidden> wrote:

> Hmm.  It shouldn't take a huge amount of time to compare each pair
> of regtest images -- they're named, so you'd be comparing
> something like 500 pairs of .png images.  (Neil: were you thinking
> of something else?)

I think this would be very slow unless it does something similar to
ouput-distance.py to reduce the number: you don't want to be comparing
every single pair unless absolutely necessary.

While test bugfixes, I've occasionally produced regression checks
which have affected lots of tests, and the time for `make check' in
such cases rises drastically (from about five minutes to over half an
hour), so unless Phil's pixel-by-pixel comparison is much faster than
`compare', it's still going to be too slow.


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