On Fri, 13 Jun 1997 03:51:03 -0500 (CDT) 
 "Tom T. Thai" <tomthai@future.net> wrote:

 > I did a test with my ccd partition..  by rm -rf /var/spool/news/*
 > shown below are some stats.. "freelist misses" are way high.. and it's 
 > not done removing all the files at this point yet..
 > 
 > # df -k
 > Filesystem  1K-blocks     Used    Avail Capacity  Mounted on
 > /dev/sd0a       18999    10356     7693    57%    /
 > /dev/sd0e      191383    92107    89706    51%    /usr
 > /dev/sd0f      708532   193036   480069    29%    /var
 > /dev/ccd0d    3895084   529744  3170585    14%    /var/spool/news
 > # ccdconfig -s
 > Statistics for ccd0:
 >         freelist count: 14
 >         freelist hiwater: 16
 >         freelist misses: 18360
 >         ccdbuf allocations: 331151

Ah, if that is the case, you want to rebuid your kernel, with the following
option:

options 	CCDNBUF=xx

...you might try setting it to 16, which would give you a freelist hiwater
of 32 (if you have 2 components).

...you can also patch that value with gdb ... it's an initialized variable
called "ccdnbuf".  That way you don't have to rebuild while you're finding
the right value to use.. just reboot :-)

Heh, actually, you could just ccdconfig -u, patch, then ccdconfig -c :-)

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939