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Added recalculation of ARC stats mid-eviction 

Re-adds a recalculation step for the ARC stats after the MRU
eviction so that we don't pathologically attempt to evict the MFU.

Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Authored-by: Mark Johnston <markj@freebsd.org>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #7855
This commit is contained in:
Rich Ercolani 2018-09-05 01:15:14 -04:00 committed by Brian Behlendorf
parent 27ca030fa6
commit 0405eeea6a
1 changed files with 7 additions and 0 deletions
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7
module/zfs/arc.c
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@ -4638,6 +4638,13 @@ arc_adjust(void)
arc_adjust_impl(arc_mru, 0, target, ARC_BUFC_METADATA); arc_adjust_impl(arc_mru, 0, target, ARC_BUFC_METADATA);
} }
/*
* Re-sum ARC stats after the first round of evictions.
*/
asize = aggsum_value(&arc_size);
ameta = aggsum_value(&arc_meta_used);
/* /*
* Adjust MFU size * Adjust MFU size
* *