[xep-support] images performance issue

Hi,
We run Ant build which performs two XSLT transformations and renders XSL
FO into PDF... PDF is a 24 pages booklet with a lot of graphics in
various formats (TIFF, JPG, SVG). Result PDF about 3-5Mb, Fo file - 300Kb.
XSLT transformation takes several second (2-10s).

PC #1 local machine
P4 - 2.4GHz, 1GB RAM, IDE HDD
Fedora Core 3, JVM 1.4.2_02, Ant 1.6.5

PC #2 dedicated server (there is no other proceses except this Xep task)
P4 - 2.4GHz, 512MB RAM, SCSI HDD
Fedora Core 5, JVM 1.5.0_08, Ant 1.6.5

Build time with graphics:
PC#1 - 35-37 seconds
PC#2 - 15-30 minutes(!)

Build time without graphics (images folder is renamed, so XEP prints
error messages about missing images to console):
PC#1 - 14 seconds
PC#2 - 8 seconds

Question is, why in PC#2 build with graphic takes so much time
(15-30min)? What might be a reason?
Thanks.

--
Intelliarts
Volodymyr.Mykhailyk
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