>>>>> "Albert" == Albert Chin <fontconfig@xxxxxxxxxxxxxxxxxxxxxxxxx> writes:
Albert> If no global /var/cache/fontconfig exists, will fontconfig
Albert> internally cache the font directories? Suboptimal but I just
Albert> want to make sure fontconfig will still work if no global
Albert> cache exists.
fonts.conf.in now has:
<cachedir>@FC_CACHEDIR@</cachedir>
<cachedir>~/.fontconfig</cachedir>
and the lib uses the first <cachedir/> that it can write to for saving
new cache files.
So if the global dir does not exist, ~/.fontconfig will be used.
I beleive that, if you add additional ones after ~/.fontconfig, cache
files in them will get used until and unless the lib writes out a new
cache file for the given font dir to ~/.fontconfig (or @FC_CACHEDIR@
if the process has write perms there).
So, an ideal case -- if every box mounts the nfs export at the same
mountpoint -- is to mount an nfs tree that contains at least these
three directory trees (in addition to anything non-font-related, of
course):
the fonts themselves
a configuration dir
a cache dir
and have each box create a symlink in /etc/fonts/conf.d -- be sure
the symlink's name starts with digits -- pointing to a file in the
config dir on the nfs mount. That file can specify <dir/> entries
for directories on the mount and <cachedir/> entries for matching
cache files.
The just create the cache files for each platform.
That said, I find that the caching is fast enough that it isn't a big
deal for each user to have a significantly-populated cache dir in
their $HOME. My ~/.fontconfig currently has cache files for just the
fonts in my ~/.fonts dir. That cache dir uses 0.70% as much disk
space as the fonts dir does. (1928k vs 275324k for 728 font files.)
I also suspect mmap(2) performace is significantly better on most
current kernels when the files are on a local device rather than on
an nfs mount. Not using nfs-mounted cache files may be a significant
performance win. Especially if the export is available campus-wide.
-JimC
--
James Cloos <cloos@xxxxxxxxxxx> OpenPGP: 0xED7DAEA6
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