I'll agree with Bob on this. A specific use case is a VirtualBox server hosting lots of guests. I even made a point of mentioning this tunable in the Solaris 10 Virtualization Essentials section on vbox :)
There are several other use cases as well. Bob Bob Sent from my iPad On May 17, 2012, at 9:03 AM, Bob Friesenhahn <bfrie...@simple.dallas.tx.us> wrote: > On Thu, 17 May 2012, Paul Kraus wrote: >> >> Why are you trying to tune the ARC as _low_ as possible? In my >> experience the ARC gives up memory readily for other uses. The only >> place I _had_ to tune the ARC in production was a couple systems >> running an app that checks for free memory _before_ trying to allocate >> it. If the ARC has all but 1 GB in use, the app (which is looking for > > On my system I adjusted the ARC down due to running user-space applications > with very bursty short-term large memory usage. Reducing the ARC assured that > there would be no contention between zfs ARC and the applications. > > Bob > -- > Bob Friesenhahn > bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ > GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
