Test performed on a Cray XE service node. For the 1.8.8 servers the default 1.8.6-wc client was used and for 2.X a special cray 2.X client was used. The lustre backend was a DDN 9950 setup as 28 OSTs on 4 OSS with 7 OSTs per OSS. No work load on the clients. statahead_max = 32 Lustre 2.2.91 file system Lustre 2.2.0 file system Lustre 2.1.2 file system Lustre 1.8.8 file system stripe-0 (28 stripes) stripe-0 (28 stripes) stripe-0 (28 stripes) stripe-0 (28 stripes) statahead total: 49 statahead total: 1553 statahead total: 5 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 49 agl total: 1553 Wed Jul 25 11:02:34 EDT 2012 Fri Jun 29 12:29:42 EDT 2012 Tue Jul 3 07:32:07 EDT 2012 Wed Jul 25 11:37:52 EDT 2012 Fri Jun 29 13:15:55 EDT 2012 Tue Jul 3 11:32:35 EDT 2012 2118 seconds 2733 seconds 14428 seconds statahead total: 50 statahead total: 1554 statahead total: 6 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 50 agl total: 1554 statahead total: 59 statahead total: 1562 statahead total: 30 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 59 agl total: 1562 Wed Jul 25 13:55:43 EDT 2012 Fri Jun 29 14:27:09 EDT 2012 Fri Jul 6 13:46:59 EDT 2012 Wed Jul 25 14:25:29 EDT 2012 Fri Jun 29 16:10:35 EDT 2012 Sat Jul 7 09:53:42 EDT 2012 1786 seconds 2606 seconds 13961 seconds statahead total: 60 statahead total: 1563 statahead total: 31 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 60 agl total: 1563 statahead total: 66 statahead total: 1569 statahead wrong: 2 statahead wrong: 0 agl total: 66 agl total: 1569 Wed Jul 25 15:50:39 EDT 2012 Fri Jun 29 20:27:26 EDT 2012 Wed Jul 25 16:49:26 EDT 2012 Fri Jun 29 21:30:43 EDT 2012 3527 seconds 3797 seconds statahead total: 67 statahead total: 1570 statahead wrong: 2 statahead wrong: 0 agl total: 67 agl total: 1570 stripe-1 stripe-1 stripe-1 stripe-1 statahead total: 50 statahead total: 1554 statahead total: 7 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 50 agl total: 1554 Wed Jul 25 11:37:52 EDT 2012 Fri Jun 29 13:15:55 EDT 2012 Tue Jul 3 21:10:55 EDT 2012 Wed Jul 25 11:41:20 EDT 2012 Fri Jun 29 13:27:15 EDT 2012 Tue Jul 3 22:05:09 EDT 2012 268 seconds 680 seconds 3254 seconds statahead total: 51 statahead total: 1555 statahead total: 8 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 1555 statahead total: 60 statahead total: 1563 statahead total: 31 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 60 agl total: 1563 Wed Jul 25 14:25:29 EDT 2012 Fri Jun 29 16:10:35 EDT 2012 Sat Jul 7 09:53:42 EDT 2012 Wed Jul 25 14:35:11 EDT 2012 Fri Jun 29 16:36:58 EDT 2012 Sat Jul 7 17:33:06 EDT 2012 582 seconds 1583 seconds 27564 seconds statahead total: 61 statahead total: 1564 statahead total: 32 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 61 agl total: 1564 statahead total: 6 statahead total: 1570 statahead total: 38 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 67 agl total: 1570 Wed Jul 25 16:49:26 EDT 2012 Fri Jun 29 21:30:43 EDT 2012 Sun Jul 8 21:27:23 EDT 2012 Wed Jul 25 16:53:07 EDT 2012 Fri Jun 29 21:43:47 EDT 2012 Mon Jul 9 05:36:44 EDT 2012 221 seconds 784 seconds 29301 seconds statahead total: 68 statahead total: 1571 statahead total: 39 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 68 agl total: 1571 stripe-2 stripe-2 stripe-2 stripe-2 statahead total: 51 statahead total: 1555 statahead total: 8 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 51 agl total: 1555 Wed Jul 25 11:41:20 EDT 2012 Fri Jun 29 13:27:16 EDT 2012 Tue Jul 3 22:05:09 EDT 2012 Wed Jul 25 11:45:10 EDT 2012 Fri Jun 29 13:38:32 EDT 2012 Wed Jul 4 01:39:11 EDT 2012 230 seconds 676 seconds 12842 seconds statahead total: 52 statahead total: 1556 statahead total: 9 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 52 agl total: 1556 statahead total: 61 statahead total: 1564 statahead total: 32 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 61 agl total: 1564 Wed Jul 25 14:35:11 EDT 2012 Fri Jun 29 16:36:58 EDT 2012 Sat Jul 7 17:33:07 EDT 2012 Wed Jul 25 14:39:09 EDT 2012 Fri Jun 29 17:01:03 EDT 2012 Sat Jul 7 18:43:17 EDT 2012 238 seconds 1445 seconds 2990 seconds statahead total: 62 statahead total: 1565 statahead total: 33 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 62 agl total: 1565 statahead total: 68 statahead total: 1571 statahead total: 39 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 68 agl total: 1571 Wed Jul 25 16:53:07 EDT 2012 Fri Jun 29 21:43:47 EDT 2012 Mon Jul 9 05:36:44 EDT 2012 Wed Jul 25 16:56:59 EDT 2012 Fri Jun 29 22:12:46 EDT 2012 Mon Jul 9 08:12:40 EDT 2012 232 seconds 1779 seconds 13764 seconds statahead total: 69 statahead total: 1572 statahead total: 40 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 69 agl total: 1572 stripe-3 stripe-3 stripe-3 stripe-3 statahead total: 52 statahead total: 1556 statahead total: 9 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 52 agl total: 1556 Wed Jul 25 11:45:10 EDT 2012 Fri Jun 29 13:38:32 EDT 2012 Wed Jul 4 01:39:11 EDT 2012 Wed Jul 25 11:49:34 EDT 2012 Fri Jun 29 13:50:53 EDT 2012 Wed Jul 4 04:38:40 EDT 2012 264 seconds 741 seconds 10769 seconds statahead total: 53 statahead total: 1557 statahead total: 10 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 53 agl total: 1557 statahead total: 62 statahead total: 1565 statahead total: 33 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 62 agl total: 1565 Wed Jul 25 14:39:09 EDT 2012 Fri Jun 29 17:01:03 EDT 2012 Sat Jul 7 18:43:17 EDT 2012 Wed Jul 25 14:43:53 EDT 2012 Fri Jun 29 17:13:58 EDT 2012 Sat Jul 7 19:40:40 EDT 2012 284 seconds 775 seconds 3443 seconds statahead total: 63 statahead total: 1566 statahead total: 34 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 63 agl total: 1566 statahead total: 69 statahead total: 1572 statahead total: 40 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 69 agl total: 1572 Wed Jul 25 16:56:59 EDT 2012 Fri Jun 29 22:12:46 EDT 2012 Mon Jul 9 08:12:40 EDT 2012 Wed Jul 25 17:01:16 EDT 2012 Fri Jun 29 22:27:38 EDT 2012 Mon Jul 9 09:39:40 EDT 2012 257 seconds 652 seconds 3060 seconds statahead total: 70 statahead total: 1573 statahead total: 41 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 70 agl total: 1573 stripe-4 stripe-4 stripe-4 stripe-4 statahead total: 53 statahead total: 1557 statahead total: 10 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 53 agl total: 1557 Wed Jul 25 11:49:34 EDT 2012 Fri Jun 29 13:50:53 EDT 2012 Wed Jul 4 04:38:40 EDT 2012 Wed Jul 25 11:54:31 EDT 2012 Fri Jun 29 14:22:51 EDT 2012 Wed Jul 4 09:29:15 EDT 2012 297 seconds 1918 seconds 17455 seconds statahead total: 54 statahead total: 1558 statahead total: 11 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 54 agl total: 1558 statahead total: 63 statahead total: 1566 statahead total: 34 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 63 agl total: 1566 Wed Jul 25 14:43:53 EDT 2012 Fri Jun 29 17:13:58 EDT 2012 Sat Jul 7 19:40:40 EDT 2012 Wed Jul 25 14:49:14 EDT 2012 Fri Jun 29 18:22:50 EDT 2012 Sat Jul 7 20:37:53 EDT 2012 321 seconds 4132 seconds 3433 seconds statahead total: 64 statahead total: 1567 statahead total: 35 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total : 64 agl total: 1567 statahead total: 70 statahead total: 1576 statahead total: 41 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 70 agl total: 1576 Wed Jul 25 17:01:16 EDT 2012 Mon Jul 2 07:57:03 EDT 2012 Mon Jul 9 09:39:40 EDT 2012 Wed Jul 25 17:06:09 EDT 2012 Mon Jul 2 08:10:40 EDT 2012 Mon Jul 9 10:49:23 EDT 2012 293 seconds 817 seconds 4183 seconds statahead total: 71 statahead total: 1577 statahead total: 42 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 71 agl total: 1577 stripe-8 stripe-8 stripe-8 stripe-8 statahead total: 54 statahead total: 1586 statahead total: 13 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 54 agl total: 1586 Wed Jul 25 11:54:31 EDT 2012 Mon Jul 2 09:16:37 EDT 2012 Wed Jul 4 18:01:27 EDT 2012 Wed Jul 25 12:18:51 EDT 2012 Mon Jul 2 09:45:17 EDT 2012 Wed Jul 4 21:52:58 EDT 2012 1460 seconds 1720 seconds 13891 seconds statahead total: 55 statahead total: 1587 statahead total: 14 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 55 agl total: 1587 statahead total: 64 statahead total: 1567 statahead total: 15 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 64 agl total: 1567 Wed Jul 25 14:49:14 EDT 2012 Fri Jun 29 18:22:50 EDT 2012 Wed Jul 4 23:43:18 EDT 2012 Wed Jul 25 15:13:45 EDT 2012 Fri Jun 29 19:55:58 EDT 2012 Thu Jul 5 10:56:40 EDT 2012 1471 seconds 5708 seconds 40402 seconds statahead total: 65 statahead total: 1568 statahead total: 16 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 65 agl total: 1568 statahead total: 71 statahead total: 1577 statahead total: 17 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 71 agl total: 1577 Wed Jul 25 17:06:09 EDT 2012 Mon Jul 2 08:10:40 EDT 2012 Thu Jul 5 12:36:23 EDT 2012 Wed Jul 25 17:30:51 EDT 2012 Mon Jul 2 08:38:39 EDT 2012 Thu Jul 5 23:33:03 EDT 2012 1482 seconds 1679 seconds 39400 seconds statahead total: 72 statahead total: 1578 statahead total: 18 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 72 agl total: 1578 stripe-16 stripe-16 stripe-16 stripe-16 statahead total: 55 statahead total: 1587 statahead total: 14 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 55 agl total: 1587 Wed Jul 25 12:18:51 EDT 2012 Mon Jul 2 09:45:17 EDT 2012 Wed Jul 4 21:52:59 EDT 2012 Wed Jul 25 12:53:01 EDT 2012 Mon Jul 2 10:16:45 EDT 2012 Wed Jul 4 23:43:18 EDT 2012 2050 seconds 1888 seconds 6619 seconds statahead total: 56 statahead total: 1588 statahead total: 15 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 56 agl total: 1588 statahead total: 65 statahead total: 1568 statahead total: 16 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 65 agl total: 1568 Wed Jul 25 15:13:45 EDT 2012 Fri Jun 29 19:55:58 EDT 2012 Thu Jul 5 10:56:40 EDT 2012 Wed Jul 25 15:50:39 EDT 2012 Fri Jun 29 20:27:26 EDT 2012 Thu Jul 5 12:36:23 EDT 2012 2214 seconds 1888 seconds 5983 seconds statahead total: 66 statahead total: 1569 statahead total: 17 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 66 agl total: 1569 statahead total: 72 statahead total: 1578 statahead total: 18 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 72 agl total: 1578 Wed Jul 25 17:30:51 EDT 2012 Mon Jul 2 08:38:39 EDT 2012 Thu Jul 5 23:33:03 EDT 2012 Wed Jul 25 18:07:00 EDT 2012 Mon Jul 2 09:10:55 EDT 2012 Fri Jul 6 01:15:19 EDT 2012 2169 seconds 1936 seconds 6136 seconds statahead total: 73 statahead total: 1579 statahead total: 19 statahead wrong: 2 statahead wrong: 0 statahead wrong: 0 agl total: 73 agl total: 1579