git: kernel - Increase NCMOUNT_NUMCACHE, add enable & statistics

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 7e9c94bdefc47c3ba8677bcab40222d826d7aeac
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Fri Feb 22 01:54:47 2013 -0800

    kernel - Increase NCMOUNT_NUMCACHE, add enable & statistics
    
    * Increase NCMOUNT_NUMCACHE to 1009 (prime number), change to modulo.
      This cache improves long namecache path lookups.
    
    * Add enable and statistics.  Cache defaults to enabled.
    
        debug.ncmount_cache_enable	(defaults to 1)
        debug.ncmount_cache_hit
        debug.ncmount_cache_miss
        debug.ncmount_cache_overwrite

Summary of changes:
 sys/kern/vfs_cache.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/7e9c94bdefc47c3ba8677bcab40222d826d7aeac


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