cvs commit: src/sys/kern vfs_cache.c

[Dag-Erling Smorgrav]

des         2003/06/13 01:46:13 PDT

  FreeBSD src repository

  Modified files:
    sys/kern             vfs_cache.c 
  Log:
  Make the VFS cache use zones instead of malloc(9).  This results in a
  small but noticeable increase in performance for name lookup operations.
  
  The code uses two zones, one for short names (less than 32 characters)
  and one for long names (up to NAME_MAX).  Since most file names are
  fairly short, this saves a considerable amount of space that would
  otherwise be wasted if we always allocated NAME_MAX bytes.  The cutoff
  value of 32 characters was picked arbitrarily and may benefit from some
  tweaking; it could also be made into a tunable.
  
  Submitted by:   hmp
  
  Revision  Changes    Path
  1.85      +33 -4     src/sys/kern/vfs_cache.c