Mojca Miklavec wrote:
On Sat, Apr 25, 2009 at 15:33, Yue Wang wrote:
I see, no font is defined when dumping the formats... pretty unlike plain TeX...
then why so much time is used for iwona, while only 1.2 sec is used to
load lm roman?

I have a bit of a problem to test all that since running fc-cache only
takes two seconds.

here fc-cache takes minutes

A run with iwona takes 2.1 seconds (2.4 when some math equations are
added) and a run with LM takes 1.1 seconds. The timings refer to
subsequent runs, not to the first run.

lm is faster because the definitions are preloaded (not the fonts themselves but the typescript defs)

Maybe I should try to experiment on Windows. I have no idea when XeTeX
forces reload of fc-cache, but I suspect that any other application
does the same if font database becomes outdated. I didn't notice
subsequent runs of fc-cache though. Once fc-cache is through, it
doesn't run for a while.

here it runs *each* xetex run

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