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author | Prakash Surya <[email protected]> | 2013-12-11 12:25:30 -0800 |
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committer | Brian Behlendorf <[email protected]> | 2014-02-21 14:53:08 -0800 |
commit | 39e055c44b3025d9ef87f6c6178ef5ae5e2a55c6 (patch) | |
tree | a4b3581ed1870fdc33a6d38446420a9c9e5e3240 /module/zfs/vdev_cache.c | |
parent | 914158259225d9723bbb288457797936b41d3c9a (diff) |
Adjust arc_p based on "bytes" in arc_shrink
In an attempt to prevent arc_c from collapsing "too fast", the
arc_shrink() function was updated to take a "bytes" parameter by this
change:
commit 302f753f1657c05a4287226eeda1f53ae431b8a7
Author: Brian Behlendorf <[email protected]>
Date: Tue Mar 13 14:29:16 2012 -0700
Integrate ARC more tightly with Linux
Unfortunately, that change failed to make a similar change to the way
that arc_p was updated. So, there still exists the possibility for arc_p
to collapse to near 0 when the kernel start calling the arc's shrinkers.
This change attempts to fix this, by decrementing arc_p by the "bytes"
parameter in the same way that arc_c is updated.
In addition, a minimum value of arc_p is attempted to be maintained,
similar to the way a minimum arc_p value is maintained in arc_adapt().
Signed-off-by: Prakash Surya <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #2110
Diffstat (limited to 'module/zfs/vdev_cache.c')
0 files changed, 0 insertions, 0 deletions