brw_stats with a 2.6 client: read | write pages per bulk r/w rpcs % cum % | rpcs % cum % 1: 28891 23 23 | 0 0 0 2: 290 0 23 | 0 0 0 4: 36414 29 52 | 0 0 0 8: 57486 45 98 | 0 0 0 16: 80 0 98 | 0 0 0 32: 140 0 98 | 0 0 0 64: 297 0 98 | 0 0 0 128: 595 0 99 | 0 0 0 256: 1125 0 100 | 0 0 0 read | write discontiguous pages rpcs % cum % | rpcs % cum % 0: 123074 98 98 | 0 0 0 1: 122 0 98 | 0 0 0 2: 110 0 98 | 0 0 0 3: 86 0 98 | 0 0 0 4: 122 0 98 | 0 0 0 5: 123 0 98 | 0 0 0 6: 126 0 98 | 0 0 0 7: 120 0 98 | 0 0 0 8: 151 0 98 | 0 0 0 9: 170 0 99 | 0 0 0 10: 210 0 99 | 0 0 0 11: 241 0 99 | 0 0 0 12: 224 0 99 | 0 0 0 13: 191 0 99 | 0 0 0 14: 139 0 99 | 0 0 0 15: 75 0 99 | 0 0 0 16: 25 0 99 | 0 0 0 17: 7 0 99 | 0 0 0 18: 2 0 100 | 0 0 0 read | write discontiguous blocks rpcs % cum % | rpcs % cum % 0: 123037 98 98 | 0 0 0 1: 159 0 98 | 0 0 0 2: 110 0 98 | 0 0 0 3: 85 0 98 | 0 0 0 4: 121 0 98 | 0 0 0 5: 123 0 98 | 0 0 0 6: 128 0 98 | 0 0 0 7: 119 0 98 | 0 0 0 8: 148 0 98 | 0 0 0 9: 172 0 99 | 0 0 0 10: 211 0 99 | 0 0 0 11: 239 0 99 | 0 0 0 12: 224 0 99 | 0 0 0 13: 192 0 99 | 0 0 0 14: 138 0 99 | 0 0 0 15: 76 0 99 | 0 0 0 16: 26 0 99 | 0 0 0 17: 8 0 99 | 0 0 0 18: 2 0 100 | 0 0 0 read | write disk fragmented I/Os ios % cum % | ios % cum % 1: 123033 98 98 | 0 0 0 2: 163 0 98 | 0 0 0 3: 109 0 98 | 0 0 0 4: 86 0 98 | 0 0 0 5: 121 0 98 | 0 0 0 6: 123 0 98 | 0 0 0 7: 128 0 98 | 0 0 0 8: 119 0 98 | 0 0 0 9: 148 0 98 | 0 0 0 10: 172 0 99 | 0 0 0 11: 211 0 99 | 0 0 0 12: 239 0 99 | 0 0 0 13: 224 0 99 | 0 0 0 14: 192 0 99 | 0 0 0 15: 138 0 99 | 0 0 0 16: 76 0 99 | 0 0 0 17: 26 0 99 | 0 0 0 18: 8 0 99 | 0 0 0 19: 2 0 100 | 0 0 0 read | write disk I/Os in flight ios % cum % | ios % cum % 1: 122221 84 84 | 0 0 0 2: 2633 1 86 | 0 0 0 3: 2303 1 87 | 0 0 0 4: 2254 1 89 | 0 0 0 5: 2139 1 90 | 0 0 0 6: 2042 1 92 | 0 0 0 7: 1867 1 93 | 0 0 0 8: 1727 1 94 | 0 0 0 9: 1584 1 95 | 0 0 0 10: 1443 0 96 | 0 0 0 11: 1301 0 97 | 0 0 0 12: 1092 0 98 | 0 0 0 13: 871 0 98 | 0 0 0 14: 636 0 99 | 0 0 0 15: 385 0 99 | 0 0 0 16: 228 0 99 | 0 0 0 17: 111 0 99 | 0 0 0 18: 44 0 99 | 0 0 0 19: 22 0 99 | 0 0 0 20: 14 0 99 | 0 0 0 21: 9 0 99 | 0 0 0 22: 8 0 99 | 0 0 0 23: 6 0 99 | 0 0 0 24: 6 0 99 | 0 0 0 25: 6 0 99 | 0 0 0 26: 6 0 99 | 0 0 0 27: 5 0 99 | 0 0 0 28: 4 0 99 | 0 0 0 29: 3 0 99 | 0 0 0 30: 2 0 100 | 0 0 0 read | write I/O time (1/1000s) ios % cum % | ios % cum % 1: 122 0 0 | 0 0 0 2: 186 0 0 | 0 0 0 4: 38846 30 31 | 0 0 0 8: 61045 48 79 | 0 0 0 16: 24733 19 99 | 0 0 0 32: 348 0 99 | 0 0 0 64: 36 0 99 | 0 0 0 128: 2 0 100 | 0 0 0 read | write disk I/O size ios % cum % | ios % cum % 4K: 28998 20 20 | 0 0 0 8K: 322 0 20 | 0 0 0 16K: 46867 32 52 | 0 0 0 32K: 58795 40 93 | 0 0 0 64K: 5430 3 96 | 0 0 0 128K: 2757 1 98 | 0 0 0 256K: 1173 0 99 | 0 0 0 512K: 465 0 99 | 0 0 0 1M: 165 0 100 | 0 0 0