On Wed, 4 Nov 2009, Mario Goebbels wrote:
I've been noticing regular writing activity to my data pool while the system's relatively idle, just a little read IO. Turns out the system's writing up to 20MB of data to the pool every 15-30 seconds. Using iotop from the DTrace Toolkit, apparently the process responsible is sched. What's going on here? Playing back a simple video file wouldn't generate enough metadata changes to create that much updates.
Did you disable 'atime' updates for your filesystem? Otherwise the file access times need to be periodically updated and this would happen may every 15-30 seconds.
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
