[poppler] poppler 0.29 pdftoppm much slower than poppler 0.20 ?

[Albert Astals Cid]

El Diumenge, 28 de desembre de 2014, a les 16:55:27, Anthony Wesley va 
escriure:
> I downloaded and compiled poppler-0.28.0, and the pdftoppm speed is fine in
> that version, the same as in the old version I've been using - 0.20.5.
> 
> It seems that some change between 0.28.0 and 0.29.0 is causing a 6x slowdown
> in pdftoppm, at least in the test cases I'm using...

You should get the code from git and bisect which of the commits between 0.28 
and 0.29 introduced the regression.

There are not too many so it should be relatively straight forward.

Cheers,
  Albert

> 
> regards, Anthony
> 
> On 12/27/2014 04:24 PM, Anthony Wesley wrote:
> > Hi, I'm upgrading my copy of poppler for the first time in a while, I've
> > been using 0.20.5 but now I've downloaded 0.29.0 and I'm finding that
> > pdftoppm is *much* slower under the new version, maybe 5x or 6x slower.
> > 
> > Is this already known, and for a good reason? Sorry if this is already
> > understood.
> > 
> > I'm using a recent centos 6, 64 bit linux and the following configure
> > command:
> > 
> > ./configure --prefix=/usr/local --disable-libjpeg --disable-libopenjpeg
> > 
> > forcing poppler to use the builtin jpeg library. This is the same config
> > as for the old version I have (0.20.5).
> > 
> > regards, Anthony