> Short version: Pool A is fast, pool B is slow. Writing to pool A is > fast. Writing to pool B is slow. Writing to pool B WHILE writing to > pool A is fast on both pools. Explanation?
[snip] For the archives, it is interesting to note that when I do not perform a local "dd" to the device, but instead use rsync over ssh (thus being limited by network/cpu) performance is fine. It bursts out every now and then: ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 124M 1.16T 0 0 0 0 ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 124M 1.16T 0 0 0 0 ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 124M 1.16T 0 56 0 7.08M ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 124M 1.16T 0 115 0 14.4M ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 154M 1.16T 0 90 0 1.04M ---------- ----- ----- ----- ----- ----- ----- fast 51.7G 246G 0 0 0 0 raid0 154M 1.16T 0 0 0 0 Performance is still not visibly stellar, but then the actual stransfer is only 4 megs or so per second and I don't know how flushes are handled by zfs. But it's most definitely faster than the 4 mb/second seen when dd:ing to the pool. -- / 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
