On 04 Jun 2009, at 15:36, Laera Dario wrote:
Hi Dario
I once ran a test with a document
containing one single fo:block with the pre-formatted text of an
entire book. Without 'linefeed-treatment="preserve"', FOP needed at
least 768MB to avoid running out of memory, because it had to
recompute all the line-breaks. Preserving the linefeeds, I needed
only
64MB (maybe even lower, but I don't think I tried that).
Andreas, this recalls me an old thread: http://markmail.org/thread/j3zg47pfwjjn3y6v
. Maybe the adjustment ratio have some responsibility on the high
memory consumption.
Some, yes, but not all. It was a simple one-column layout, so the
default size for a space should be roughly OK in relation to the line-
length.
The fact remains that FOP has to recompute and reconsider all of the
break-possibilities between every word, while using forced line-breaks
automatically generates -INFINITE penalties, so the algorithm has no
choice but to consider those breaks as definitive. A similar logic
holds for page-sequences, I think. If you use huge amounts of tiny
fo:blocks without forced page-breaks, line-breaking will not require
that much memory, but page-breaking will...
Regards
Andreas
