Matt, On Wed, Aug 05, 2009 at 07:06:06PM -0700, Matt Ingenthron wrote: > Hi, > > Other than modifying /etc/system, how can I keep the ARC cache low at boot > time? > > Can I somehow create an SMF service and wire it in at a very low level to put > a fence around ZFS memory usage before other services come up? > > I have a deployment scenario where I will have some reasonably large memory > systems (1.7GByte) on Amazon EC2 where the application I'm running needs a > lot of memory, is using large pages and won't use ZFS in any significant way. > Therefore, I would like to limit ZFS's use of memory on the system. >
If ZFS is not beinng used significantly, then ARC should not grow. ARC grows based on the usage (ie. amount of ZFS files/data accessed). Hence, if you are sure that the ZFS usage is low, things should be fine. Hope that helps. Regards, Sanjeev > I'd followed the evil tuning guide to modify /etc/system, however I've just > found by corresponding with the EC2 support folks that it is not supported to > modify /etc/system (and it doesn't work... it keeps the system from booting). > > Thanks in advance, > > - Matt > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- ---------------- Sanjeev Bagewadi Solaris RPE Bangalore, India _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
