[Bug 187594] [zfs] [patch] ZFS ARC behavior problem and fix

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Sat Aug 23 11:37:56 UTC 2014


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=187594

--- Comment #25 from fullermd at over-yonder.net ---
Having run it for a few months on a number of boxes now, my general impression
is that it seems like it goes a little _too_ far (with default options anyway;
I haven't tried any tuning) toward making the ARC give up its lunch money to
anybody who looks threateningly at it.  It feels like it should be a bit more
aggressive, and historically was and did fine.

However, it's still _much_ nicer than the unpatched case, where the rest of the
system starves and hides out in the swap space.  So from here, while perhaps
imperfect and in need of some tuning work, it's still a significant improvement
on the prior state, so landing it sounds just fine to me.

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