| commit | e9299f5058595a655c3b207cda9635e28b9197e6 | |
| author | Dave Chinner <dchinner@redhat.com> | |
| Fri, 8 Jul 2011 04:14:37 +0000 (8 14:14 +1000) | ||
| committer | Al Viro <viro@zeniv.linux.org.uk> | |
| Wed, 20 Jul 2011 05:44:32 +0000 (20 01:44 -0400) | ||
| tree | b31a4dc5cab98ee1701313f45e92e583c2d76f63 | treesnapshot (tar.gz zip) |
| parent | 3567b59aa80ac4417002bf58e35dce5c777d4164 | commitdiff |
vmscan: add customisable shrinker batch size
For shrinkers that have their own cond_resched* calls, having
shrink_slab break the work down into small batches is not
paticularly efficient. Add a custom batchsize field to the struct
shrinker so that shrinkers can use a larger batch size if they
desire.
A value of zero (uninitialised) means "use the default", so
behaviour is unchanged by this patch.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
For shrinkers that have their own cond_resched* calls, having
shrink_slab break the work down into small batches is not
paticularly efficient. Add a custom batchsize field to the struct
shrinker so that shrinkers can use a larger batch size if they
desire.
A value of zero (uninitialised) means "use the default", so
behaviour is unchanged by this patch.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| include/linux/mm.h | diffblobblamehistory | |
| mm/vmscan.c | diffblobblamehistory |