== sanity test 101a: check read-ahead for random reads === 04:55:16 (1769075716) nreads: 10000 file size: 96MB 180.995645s, 3.42823MB/s osc.lustre-OST0000-osc-ffff9a1410e2c800.rpc_stats= snapshot_time: 1769075920.118588487 secs.nsecs start_time: 1769075718.630772130 secs.nsecs elapsed_time: 201.487816357 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: 2 0 0 | 0 0 0 2: 2 0 0 | 0 0 0 4: 4 0 0 | 0 0 0 8: 6 0 0 | 0 0 0 16: 6174 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6188 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 19 0 0 | 0 0 4 128: 30 0 1 | 0 0 4 256: 63 1 2 | 0 0 4 512: 127 2 4 | 0 0 4 1024: 237 3 7 | 1 4 8 2048: 534 8 16 | 2 8 16 4096: 1016 16 33 | 4 16 32 8192: 2032 32 65 | 8 32 64 16384: 2112 34 100 | 9 36 100 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: 762 12 12 | 0 0 0 8192: 3556 57 69 | 0 0 0 16384: 1758 28 98 | 0 0 0 32768: 259 4 102 | 1 4 4 65536: 0 0 102 | 21 84 88 131072: 0 0 102 | 3 12 100 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-ffff9a1410e2c800.rpc_stats= snapshot_time: 1769075920.118740720 secs.nsecs start_time: 1769075718.630803834 secs.nsecs elapsed_time: 201.487936886 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 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff9a1410e2c800.read_ahead_stats= snapshot_time 1769075920.132580621 secs.nsecs start_time 1769075718.680379948 secs.nsecs elapsed_time 201.452200673 secs.nsecs hits 92625 samples [pages] misses 6188 samples [pages] readpage_not_consecutive 9461 samples [pages] zero_size_window 92627 samples [pages] failed_to_fast_read 6188 samples [pages] readahead_pages 6186 samples [pages] 1 15 92625