On 24/09/2011 14:24, Christian Pühringer wrote:
The JAVA liblzma performance is pretty bad: To
increase efficiency of
compression in the zim-format articles (and also all
other data like images) are stored in clusters. Cluster size is apparently about
1 MB. This implies that loading an article
which is stored at the end of a cluster involves decompressing the complete
cluster.
Images should not be compressed in ZIM files for the obvious reasons
they mainly are already compressed. This is the case for all ZIM files I
made. As far as I know this is also the case for Mediawiki:Collection
build ZIM files.
Emmanuel