On Fri, 15 Feb 2008, Roch Bourbonnais wrote: >> The latter appears to be bug 6429855. But the underlying behaviour >> doesn't really seem desirable; are there plans afoot to do any work on >> ZFS write throttling to address this kind of thing? > > Throttling is being addressed. > > http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6429205
I have observed similar behavior when using 'iozone' on a large file to benchmark ZFS on my StorageTek 2540 array. Fsstat shows gaps of up to 30 seconds of no I/O when run on a 10 second update cycle but when I go to look at the lights on the array, I see that it is actually fully busy. It seems that the application is stalled during this load. It also seems that simple operations like 'ls' get stalled under such heavy load. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], 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
