> Specifically, I was trying to compare ZFS snapshots with LVM snapshots on > Linux. One of the tests does writes to an ext3FS (that's on top of an LVM > snapshot) mounted synchronously, in order to measure the real > Copy-on-write overhead. So, I was wondering if I could do the same with > ZFS. Seems not.
Given that ZFS does COW for *all* writes, what does this test actually intend to show when running on ZFS? Am I missing something, or should not writes to a clone be as fast, or even faster, than a write to a non-clone? Given that COW is always performed, but in the case of the clone the old data is not removed. -- / Peter Schuller, InfiDyne Technologies HB PGP userID: 0xE9758B7D or 'Peter Schuller <[EMAIL PROTECTED]>' Key retrieval: Send an E-Mail to [EMAIL PROTECTED] E-Mail: [EMAIL PROTECTED] Web: http://www.scode.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss