git: kernel - Improve per-cpu caching of pv_entry's

Matthew Dillon dillon at
Sun Nov 13 09:41:30 PST 2011

commit 5669360730c92e705c92afd02210e7859b0dc722
Author: Matthew Dillon <dillon at>
Date:   Sun Nov 13 09:39:14 2011 -0800

    kernel - Improve per-cpu caching of pv_entry's
    * The vm_zone (zalloc) code needs to be replaced with objcache, but until
      we do continue improving certain critical paths in it.
    * Burst fill an empty per-cpu cache to reduce overheads when working with
      large numbers of processes with large shared address spaces (postgres,
      mysql, etc).  This reduces contention under heavy use situations.

Summary of changes:
 sys/vm/vm_zone.c |   30 +++++++++++++++++++++---------
 1 files changed, 21 insertions(+), 9 deletions(-)

DragonFly BSD source repository

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