ZFS and UFS on the same box. Cache memory allocation issue.
kraduk at googlemail.com
Fri Dec 18 17:05:16 UTC 2009
2009/12/18 Alexander Zagrebin <alexz at visp.ru>
> > > As result UFS returns memory to "free" pool and ZFS can
> > allocate it for ARC.
> > > It significantly increases ZFS performance.
> > >
> > > Is there an another workaround?
> > do you know about the following ZFS loader tunables:
> > vfs.zfs.arc_min="400M"
> > vfs.zfs.arc_max="500M"
> > These should be added to /boot/loader.conf (and they can of course be
> > adjusted to make your system behave well ...)
> Yes, I do.
> vfs.zfs.arc_min would be used at this situation, but it seems that setting
> this sysctl doesn't help.
> Alexander Zagrebin
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Not really a proper fix but what happens if you have something defined as
the l2arc device?
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