== sanity test 101a: check read-ahead for random reads === 03:29:32 (1787383772) nreads: 10000 file size: 96MB 180.062884s, 3.09222MB/s osc.lustre-OST0000-osc-ffff95d20426b000.rpc_stats= snapshot_time: 1787383972.069757914 secs.nsecs start_time: 1787383774.054129842 secs.nsecs elapsed_time: 198.015628072 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 1 0 0 | 1 3 3 2: 4 0 0 | 0 0 3 4: 2 0 0 | 0 0 3 8: 3 0 0 | 1 3 7 16: 5589 99 100 | 0 0 7 32: 0 0 100 | 0 0 7 64: 0 0 100 | 0 0 7 128: 0 0 100 | 0 0 7 256: 0 0 100 | 0 0 7 512: 0 0 100 | 0 0 7 1024: 0 0 100 | 25 92 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5598 99 99 | 25 92 92 2: 1 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 3 11 11 1: 0 0 0 | 0 0 11 2: 0 0 0 | 0 0 11 4: 0 0 0 | 0 0 11 8: 0 0 0 | 0 0 11 16: 4 0 0 | 0 0 11 32: 8 0 0 | 0 0 11 64: 15 0 0 | 0 0 11 128: 24 0 1 | 0 0 11 256: 59 1 2 | 0 0 11 512: 119 2 4 | 0 0 11 1024: 205 3 7 | 1 3 14 2048: 486 8 16 | 2 7 22 4096: 915 16 32 | 4 14 37 8192: 1842 32 65 | 8 29 66 16384: 1916 34 100 | 9 33 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 1 0 0 | 0 0 0 4096: 330 5 5 | 0 0 0 8192: 2867 51 57 | 0 0 0 16384: 2124 37 95 | 1 3 3 32768: 385 6 101 | 5 18 22 65536: 24 0 102 | 21 77 100 131072: 0 0 102 | 0 0 100 262144: 0 0 102 | 0 0 100 524288: 0 0 102 | 0 0 100 1048576: 0 0 102 | 0 0 100 2097152: 0 0 102 | 0 0 100 4194304: 0 0 102 | 0 0 100 8388608: 0 0 102 | 0 0 100 16777216: 0 0 102 | 0 0 100 33554432: 0 0 102 | 0 0 100 67108864: 0 0 102 | 0 0 100 134217728: 0 0 102 | 0 0 100 268435456: 0 0 102 | 0 0 100 536870912: 0 0 102 | 0 0 100 1073741824: 0 0 102 | 0 0 100 osc.lustre-OST0001-osc-ffff95d20426b000.rpc_stats= snapshot_time: 1787383972.069980989 secs.nsecs start_time: 1787383774.054410504 secs.nsecs elapsed_time: 198.015570485 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 3 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 0 0 0 | 0 0 0 4096: 0 0 0 | 0 0 0 8192: 0 0 0 | 0 0 0 16384: 0 0 0 | 2 66 66 32768: 0 0 0 | 1 33 100 llite.lustre-ffff95d20426b000.read_ahead_stats= snapshot_time 1787383972.089046166 secs.nsecs start_time 1787383774.084338788 secs.nsecs elapsed_time 198.004707378 secs.nsecs hits 83836 samples [pages] misses 5599 samples [pages] readpage_not_consecutive 8491 samples [pages] zero_size_window 83836 samples [pages] failed_to_fast_read 5599 samples [pages] readahead_pages 5598 samples [pages] 1 15 83836