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 2.2.0 a special cray 2.2.0 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. Lustre 2.2.91 file system Lustre 2.2.0 file system Lustre 2.1.2 file system Lustre 1.8.8 file system LU-744+LU-925 stripe-0 (28 stripes) stripe-0 (28 stripes) stripe-0 (28 stripes) stripe-0 (28 stripes) statahead total: 28 statahead total: 96 statahead total: 155 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 28 agl total: 96 Wed Jul 25 10:54:46 EDT 2012 Thu Jun 28 12:14:18 EDT 2012 Wed Jun 27 17:15:59 EDT 2012 Tue Jun 19 08:46:18 EDT 2012 Wed Jul 25 10:55:20 EDT 2012 Thu Jun 28 12:16:01 EDT 2012 Wed Jun 27 17:18:06 EDT 2012 Tue Jun 19 08:47:34 EDT 2012 36 seconds 103 seconds 127 seconds 76 seconds statahead total: 29 statahead total: 97 statahead total: 156 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 29 agl total: 97 statahead total: 35 statahead total: 250 statahead total: 162 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 35 agl total: 250 Wed Jul 25 10:57:53 EDT 2012 Tue Jun 26 21:31:42 EDT 2012 Wed Jun 27 17:23:03 EDT 2012 Tue Jun 19 08:56:27 EDT 2012 Wed Jul 25 10:58:41 EDT 2012 Tue Jun 26 21:34:01 EDT 2012 Wed Jun 27 17:25:41 EDT 2012 Tue Jun 19 08:57:44 EDT 2012 48 seconds 139 seconds 158 seconds 77 seconds statahead total: 36 statahead total: 251 statahead total: 163 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 36 agl total: 251 statahead total: 42 statahead total: 257 statahead total: 169 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 42 agl total: 257 Wed Jul 25 11:00:11 EDT 2012 Tue Jun 26 21:38:50 EDT 2012 Wed Jun 27 17:30:53 EDT 2012 Tue Jun 19 09:14:40 EDT 2012 Wed Jul 25 11:01:04 EDT 2012 Tue Jun 26 21:41:08 EDT 2012 Wed Jun 27 17:33:28 EDT 2012 Tue Jun 19 09:15:56 EDT 2012 53 seconds 138 seconds 155 seconds 76 seconds statahead total: 43 statahead total: 258 statahead total: 170 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 43 agl total: 258 stripe-1 stripe-1 stripe-1 statahead total: 29 statahead total: 244 statahead total: 156 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 29 agl total: 244 Wed Jul 25 10:55:20 EDT 2012 Tue Jun 26 21:26:54 EDT 2012 Wed Jun 27 17:18:06 EDT 2012 Tue Jun 19 08:47:53 EDT 2012 Wed Jul 25 10:55:28 EDT 2012 Tue Jun 26 21:27:24 EDT 2012 Wed Jun 27 17:18:37 EDT 2012 Tue Jun 19 08:48:28 EDT 2012 8 seconds 30 seconds 31 seconds 35 seconds statahead total: 30 statahead total: 245 statahead total: 157 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 30 agl total: 245 statahead total: 36 statahead total: 251 statahead total: 163 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 36 agl total: 251 Wed Jul 25 10:58:41 EDT 2012 Tue Jun 26 21:34:01 EDT 2012 Wed Jun 27 17:25:41 EDT 2012 Tue Jun 19 08:58:14 EDT 2012 Wed Jul 25 10:58:48 EDT 2012 Tue Jun 26 21:34:33 EDT 2012 Wed Jun 27 17:26:17 EDT 2012 Tue Jun 19 08:58:49 EDT 2012 7 seconds 34 seconds 36 seconds 35 seconds statahead total: 37 statahead total: 252 statahead total: 164 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 37 agl total: 252 statahead total: 43 statahead total: 258 statahead total: 170 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 43 agl total: 258 Wed Jul 25 11:01:04 EDT 2012 Tue Jun 26 21:41:08 EDT 2012 Wed Jun 27 17:33:28 EDT 2012 Tue Jun 19 09:25:15 EDT 2012 Wed Jul 25 11:01:12 EDT 2012 Tue Jun 26 21:41:41 EDT 2012 Wed Jun 27 17:34:03 EDT 2012 Tue Jun 19 09:25:50 EDT 2012 8 seconds 33 seconds 35 seconds 35 seconds statahead total: 44 statahead total: 259 statahead total: 171 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 44 agl total: 259 stripe-2 stripe-2 stripe-2 statahead total: 30 statahead total: 245 statahead total: 157 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 30 agl total: 245 Wed Jul 25 10:55:28 EDT 2012 Tue Jun 26 21:27:24 EDT 2012 Wed Jun 27 17:18:37 EDT 2012 Tue Jun 19 08:48:50 EDT 2012 Wed Jul 25 10:55:48 EDT 2012 Tue Jun 26 21:28:01 EDT 2012 Wed Jun 27 17:19:08 EDT 2012 Tue Jun 19 08:49:27 EDT 2012 20 seconds 37 seconds 31 seconds 37 seconds statahead total: 31 statahead total: 246 statahead total: 158 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 31 agl total: 246 statahead total: 37 statahead total: 252 statahead total: 164 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 37 agl total: 252 Wed Jul 25 10:58:48 EDT 2012 Tue Jun 26 21:34:33 EDT 2012 Wed Jun 27 17:26:17 EDT 2012 Tue Jun 19 08:59:16 EDT 2012 Wed Jul 25 10:58:57 EDT 2012 Tue Jun 26 21:35:09 EDT 2012 Wed Jun 27 17:26:54 EDT 2012 Tue Jun 19 08:59:58 EDT 2012 9 seconds 36 seconds 37 seconds 42 seconds statahead total: 38 statahead total: 253 statahead total: 165 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 38 agl total: 253 statahead total: 44 statahead total: 259 statahead total: 171 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 44 agl total: 259 Wed Jul 25 11:01:12 EDT 2012 Tue Jun 26 21:41:41 EDT 2012 Wed Jun 27 17:34:03 EDT 2012 Tue Jun 19 09:26:22 EDT 2012 Wed Jul 25 11:01:20 EDT 2012 Tue Jun 26 21:42:16 EDT 2012 Wed Jun 27 17:34:40 EDT 2012 Tue Jun 19 09:26:58 EDT 2012 8 seconds 35 seconds 37 seconds 36 seconds statahead total: 45 statahead total: 260 statahead total: 172 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 260 stripe-3 stripe-3 stripe-3 statahead total: 31 statahead total: 246 statahead total: 158 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 31 agl total: 246 Wed Jul 25 10:55:48 EDT 2012 Tue Jun 26 21:28:01 EDT 2012 Wed Jun 27 17:19:08 EDT 2012 Tue Jun 19 08:49:52 EDT 2012 Wed Jul 25 10:56:04 EDT 2012 Tue Jun 26 21:28:39 EDT 2012 Wed Jun 27 17:19:45 EDT 2012 Tue Jun 19 08:50:31 EDT 2012 16 seconds 38 seconds 37 seconds 37 seconds statahead total: 32 statahead total: 247 statahead total: 159 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 32 agl total: 247 statahead total: 38 statahead total: 253 statahead total: 165 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 38 agl total: 253 Wed Jul 25 10:58:57 EDT 2012 Tue Jun 26 21:35:09 EDT 2012 Wed Jun 27 17:26:54 EDT 2012 Tue Jun 19 09:01:55 EDT 2012 Wed Jul 25 10:59:07 EDT 2012 Tue Jun 26 21:35:48 EDT 2012 Wed Jun 27 17:27:33 EDT 2012 Tue Jun 19 09:02:36 EDT 2012 10 seconds 37 seconds 39 seconds 41 seconds statahead total: 39 statahead total: 254 statahead total: 166 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 39 agl total: 254 statahead total: 45 statahead total: 260 statahead total: 172 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 45 agl total: 260 Wed Jul 25 11:01:20 EDT 2012 Tue Jun 26 21:42:16 EDT 2012 Wed Jun 27 17:34:40 EDT 2012 Tue Jun 19 09:29:25 EDT 2012 Wed Jul 25 11:01:30 EDT 2012 Tue Jun 26 21:42:55 EDT 2012 Wed Jun 27 17:35:19 EDT 2012 Tue Jun 19 09:30:04 EDT 2012 10 seconds 39 seconds 39 seconds 39 seconds statahead total: 46 statahead total: 261 statahead total: 173 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 46 agl total: 261 stripe-4 stripe-4 stripe-4 statahead total: 32 statahead total: 247 statahead total: 159 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 32 agl total: 247 Wed Jul 25 10:56:04 EDT 2012 Tue Jun 26 21:28:39 EDT 2012 Wed Jun 27 17:19:45 EDT 2012 Tue Jun 19 08:51:58 EDT 2012 Wed Jul 25 10:56:19 EDT 2012 Tue Jun 26 21:29:22 EDT 2012 Wed Jun 27 17:20:24 EDT 2012 Tue Jun 19 08:52:43 EDT 2012 15 seconds 43 seconds 39 seconds 48 seconds statahead total: 33 statahead total: 248 statahead total: 160 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 33 agl total: 248 statahead total: 39 statahead total: 254 statahead total: 166 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 39 agl total: 254 Wed Jul 25 10:59:07 EDT 2012 Tue Jun 26 21:35:48 EDT 2012 Wed Jun 27 17:27:33 EDT 2012 Tue Jun 19 09:03:45 EDT 2012 Wed Jul 25 10:59:18 EDT 2012 Tue Jun 26 21:36:31 EDT 2012 Wed Jun 27 17:28:16 EDT 2012 Tue Jun 19 09:04:26 EDT 2012 11 seconds 43 seconds 43 seconds 41 seconds statahead total: 40 statahead total: 255 statahead total: 167 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 40 agl total: 255 statahead total: 46 statahead total: 261 statahead total: 173 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 46 agl total: 261 Wed Jul 25 11:01:30 EDT 2012 Tue Jun 26 21:42:55 EDT 2012 Wed Jun 27 17:35:19 EDT 2012 Tue Jun 19 09:31:43 EDT 2012 Wed Jul 25 11:01:42 EDT 2012 Tue Jun 26 21:43:37 EDT 2012 Wed Jun 27 17:36:00 EDT 2012 Tue Jun 19 09:32:23 EDT 2012 8 seconds 42 seconds 41 seconds 40 seconds statahead total: 47 statahead total: 262 statahead total: 174 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 47 agl total: 262 stripe-8 stripe-8 stripe-8 statahead total: 33 statahead total: 248 statahead total: 160 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 33 agl total: 248 Wed Jul 25 10:56:19 EDT 2012 Tue Jun 26 21:29:22 EDT 2012 Wed Jun 27 17:20:24 EDT 2012 Tue Jun 19 08:53:16 EDT 2012 Wed Jul 25 10:57:23 EDT 2012 Tue Jun 26 21:30:17 EDT 2012 Wed Jun 27 17:21:20 EDT 2012 Tue Jun 19 08:54:04 EDT 2012 64 seconds 55 seconds 54 seconds 48 seconds statahead total: 34 statahead total: 249 statahead total: 161 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 34 agl total: 249 statahead total: 40 statahead total: 255 statahead total: 167 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 40 agl total: 255 Wed Jul 25 10:59:18 EDT 2012 Tue Jun 26 21:36:31 EDT 2012 Wed Jun 27 17:28:16 EDT 2012 Tue Jun 19 09:05:26 EDT 2012 Wed Jul 25 10:59:38 EDT 2012 Tue Jun 26 21:37:26 EDT 2012 Wed Jun 27 17:29:17 EDT 2012 Tue Jun 19 09:06:12 EDT 2012 20 seconds 55 seconds 61 seconds 46 seconds statahead total: 41 statahead total: 256 statahead total: 168 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 256 statahead total: 47 statahead total: 262 statahead total: 174 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 47 agl total: 262 Wed Jul 25 11:01:42 EDT 2012 Tue Jun 26 21:43:37 EDT 2012 Wed Jun 27 17:36:00 EDT 2012 Tue Jun 19 09:33:54 EDT 2012 Wed Jul 25 11:02:01 EDT 2012 Tue Jun 26 21:44:32 EDT 2012 Wed Jun 27 17:37:00 EDT 2012 Tue Jun 19 09:34:39 EDT 2012 19 seconds 55 seconds 60 seconds 45 seconds statahead total: 48 statahead total: 263 statahead total: 175 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 48 agl total: 263 stripe-16 stripe-16 stripe-16 statahead total: 34 statahead total: 249 statahead total: 161 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 34 agl total: 249 Wed Jul 25 10:57:23 EDT 2012 Tue Jun 26 21:30:17 EDT 2012 Wed Jun 27 17:21:20 EDT 2012 Tue Jun 19 08:54:31 EDT 2012 Wed Jul 25 10:57:53 EDT 2012 Tue Jun 26 21:31:42 EDT 2012 Wed Jun 27 17:23:03 EDT 2012 Tue Jun 19 08:55:35 EDT 2012 30 seconds 85 seconds 103 seconds 64 seconds statahead total: 35 statahead total: 250 statahead total: 162 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 35 agl total: 250 statahead total: 41 statahead total: 256 statahead total: 168 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 41 agl total: 256 Wed Jul 25 10:59:38 EDT 2012 Tue Jun 26 21:37:26 EDT 2012 Wed Jun 27 17:29:17 EDT 2012 Tue Jun 19 09:11:37 EDT 2012 Wed Jul 25 11:00:11 EDT 2012 Tue Jun 26 21:38:50 EDT 2012 Wed Jun 27 17:30:53 EDT 2012 Tue Jun 19 09:12:36 EDT 2012 33 seconds 74 seconds 96 seconds 61 seconds statahead total: 42 statahead total: 257 statahead total: 169 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 42 agl total: 257 statahead total: 48 statahead total: 263 statahead total: 175 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0 agl total: 48 agl total: 263 Wed Jul 25 11:02:01 EDT 2012 Tue Jun 26 21:44:32 EDT 2012 Wed Jun 27 17:37:00 EDT 2012 Tue Jun 19 09:35:31 EDT 2012 Wed Jul 25 11:02:34 EDT 2012 Tue Jun 26 21:45:56 EDT 2012 Wed Jun 27 17:38:34 EDT 2012 Tue Jun 19 09:36:30 EDT 2012 33 seconds 84 seconds 94 seconds 59 seconds statahead total: 49 statahead total: 264 statahead total: 176 statahead wrong: 1 statahead wrong: 0 statahead wrong: 0