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RE: Slow compile on Windows XP - font caching problem?

From: Trevor Daniels
Subject: RE: Slow compile on Windows XP - font caching problem?
Date: Fri, 21 Mar 2008 22:17:56 -0000

Han-Wen Nienhuys, 21 March 2008 19:26
> 2008/3/21, Trevor Daniels <address@hidden>:
> >  Some facts that might have a bearing:
> >
> >  This was a clean install of Vista, not an upgrade.
> >  This was the very first LilyPond installation 
> on this system.
> >  I had admin priviledges during the install, 
> although removing them later has no effect on 
> running LilyPond.
> >  The font cache was built in 
> [user]/.lilypond-fonts.cache-2/ and contains the 
> usual three files.
> I just love microsoft operating systems....

But Vista is very pretty :)
> My best guess at this point is that this is some 
> kind of permission problem.
> * Can you see what happens if you deinstall (as 
> admin) and install (as admin) again?

Not relevant to the immediate problem, but the 
de-install left three files behind:


as well as the three files in the font cache.

I left these untouched and re-installed:

The first run accessed just the two smaller files
in the font cache, but still completed in less
than 5 secs.  Subsequent runs less than 3 secs on
trivial files.
> * Can you see what happens if you deinstall (as 
> admin) and install (without admin rights) again?

Exactly the same - all short compile times.

I de-installed again, this time deleting the
font cache, and re-installed without admin rights.
Now the first run takes c 1 min while it rebuilds
the font cache, but subsequent runs are the usual
3 sec.  The font cache was rebuilt in exactly the 
same place.

Tried running as a different user, one without
any priviledges and no admin rights.  As expected,
the first run took 50 secs to build the cache for
this user - in [user]/.lilypond-fonts.cache-2 -
but subsequent runs took the usual 3 secs.

It seems my Vista runs LilyPond 2.11.42 perfectly.
I can't make it run slowly.  So we need to find a 
user with the problem to make any further progress.

Perhaps worth mentioning - my OS is Vista Home
Premium, fully patched up to today.

Is it possible to find out the differences between
the three versions of libfontconfig-1.dll?  Might
this may have been upgraded for Vista, since the
later version fails on XP but works fine on Vista,
as the above demonstrates?

> Han-Wen Nienhuys - address@hidden - 

Trevor D

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