[Tilesathome] optimizePNGs threading speedup patch

[Matthias Julius]

Rene Wunderlich <rene.wunderlich at milaro.net> writes:

> Hi t at h list,
>
> thanks to all t at h members for the big work on osm ;)
>
> and now a bit work from me for u all
>
> WARNIG THIS PATCH IS EXPERIMENTELL!!!!!!!!!!!!!!!!!!!!!!!
> do not use it on a unwatched client!
>
> i write a smal patch to add multithreading to the optimizePNGs
> funktion in lib/Compress.pm

Hi Rene,

it is great when someone contributes to the code.

But, are you aware of the _unstable branch?  We use that for
developing and it gets merged/copied to the stable branch once in a
while.

Especially the PNG optimizing stuff has changed a lot in _unstable and
Compress.pm doesn't exist any more.

I would hate to see your efforts wasted

Maybe it is time for a new "release" in order to let _unstable not
deviate too far from stable.  It seems to be working quite reliably
(at least on my system).

Matthias