== sanity test 101a: check read-ahead for random reads === 04:51:25 (1789289485) nreads: 10000 file size: 96MB 180.943183s, 2.66826MB/s osc.lustre-OST0000-osc-ffff8a4887e3a000.rpc_stats= snapshot_time: 1789289688.117042837 secs.nsecs start_time: 1789289487.464502969 secs.nsecs elapsed_time: 200.652539868 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 | 1 3 3 2: 1 0 0 | 0 0 3 4: 1 0 0 | 0 0 3 8: 4 0 0 | 0 0 3 16: 4831 99 100 | 0 0 3 32: 0 0 100 | 0 0 3 64: 0 0 100 | 0 0 3 128: 0 0 100 | 0 0 3 256: 0 0 100 | 0 0 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4836 99 99 | 26 100 100 2: 1 0 100 | 0 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 2 7 7 1: 0 0 0 | 0 0 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 0 0 0 | 0 0 7 16: 5 0 0 | 0 0 7 32: 6 0 0 | 0 0 7 64: 12 0 0 | 0 0 7 128: 21 0 0 | 0 0 7 256: 49 1 2 | 0 0 7 512: 99 2 4 | 0 0 7 1024: 183 3 7 | 1 3 11 2048: 419 8 16 | 2 7 19 4096: 803 16 33 | 4 15 34 8192: 1574 32 65 | 8 30 65 16384: 1662 34 100 | 9 34 100 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: 83 1 1 | 0 0 0 8192: 1921 39 41 | 0 0 0 16384: 2245 46 87 | 1 3 3 32768: 664 13 101 | 0 0 3 65536: 37 0 102 | 22 84 88 131072: 0 0 102 | 3 11 100 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-ffff8a4887e3a000.rpc_stats= snapshot_time: 1789289688.117177368 secs.nsecs start_time: 1789289487.464544163 secs.nsecs elapsed_time: 200.652633205 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 75 75 2: 0 0 0 | 0 0 75 4: 0 0 0 | 0 0 75 8: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 3 75 75 2: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 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 | 1 25 25 16384: 0 0 0 | 1 25 50 32768: 0 0 0 | 2 50 100 llite.lustre-ffff8a4887e3a000.read_ahead_stats= snapshot_time 1789289688.130159301 secs.nsecs start_time 1789289487.497135951 secs.nsecs elapsed_time 200.633023350 secs.nsecs hits 72467 samples [pages] misses 4837 samples [pages] readpage_not_consecutive 7363 samples [pages] zero_size_window 72467 samples [pages] failed_to_fast_read 4837 samples [pages] readahead_pages 4837 samples [pages] 1 15 72467