[poppler] pdf rendering performance on the olpc test boards

Tomeu Vizoso tomeu at tomeuvizoso.net
Fri Nov 10 08:01:22 PST 2006

On Fri, 2006-11-10 at 19:34 +1100, Brad Hards wrote:
> On Wednesday 08 November 2006 04:11, Tomeu Vizoso wrote:
> > we have been testing the olpc pdf reader on an test board (based on
> > evince and poppler) and have found the performance a little below our
> > expectations. Simple text pages (for example [1]) take about 4 seconds
> > to render.
> It renders quite quickly for me with KPDF, but then I'm using a Duo Core at 
> 2GHz...

Yes, you need a quite slow cpu to notice it.

> > We are currently using the 0.5.4 version with the cairo backend. The
> > processor on the board is a Geode GX-500 [2], the floating point
> > performance of which is quite poor. Composition is currently done by
> > software.
> Do you need to use cairo? Is the Splash backend any faster?

We prefer using cairo, but have tried splash and is fast enough as it

Nevertheless, a cairo perf bug has been found and has a known fix. You
can see the thread going on in the cairo mailing list.

> Brad
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