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Illumos 5368 - ARC should cache more metadata

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5368 ARC should cache more metadata
Reviewed by: Alex Reece <alex.reece@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Richard Elling <richard.elling@richardelling.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/5368
  https://github.com/illumos/illumos-gate/commit/3a5286a

Porting Notes:

The vast majority of this patch was already merged in the context
of the 06358ea changes.  This is just a small hunk which was missed.

Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Matthew Ahrens 2015-06-24 15:49:08 -07:00 committed by Brian Behlendorf
parent 669dedb33f
commit c52fca13a0
1 changed files with 6 additions and 0 deletions
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6
module/zfs/arc.c
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@ -4928,6 +4928,12 @@ arc_init(void)
if (zfs_arc_meta_limit > 0 && zfs_arc_meta_limit <= arc_c_max)
arc_meta_limit = zfs_arc_meta_limit;
if (zfs_arc_meta_min > 0) {
arc_meta_min = zfs_arc_meta_min;
} else {
arc_meta_min = arc_c_min / 2;
}
if (zfs_arc_num_sublists_per_state < 1)
zfs_arc_num_sublists_per_state = num_online_cpus();