== sanity test 101a: check read-ahead for random reads === 05:43:26 (1768301006) nreads: 10000 file size: 96MB 173.979204s, 3.76689MB/s osc.lustre-OST0000-osc-ffff95ae47e4a000.rpc_stats= snapshot_time: 1768301200.822044808 secs.nsecs start_time: 1768301008.191868778 secs.nsecs elapsed_time: 192.630176030 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: 0 0 0 | 0 0 3 4: 1 0 0 | 0 0 3 8: 3 0 0 | 1 3 7 16: 6522 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: 6527 100 100 | 26 96 96 2: 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: 5 0 0 | 0 0 11 32: 8 0 0 | 0 0 11 64: 19 0 0 | 0 0 11 128: 31 0 1 | 0 0 11 256: 72 1 2 | 0 0 11 512: 132 2 4 | 0 0 11 1024: 253 3 8 | 1 3 14 2048: 550 8 16 | 2 7 22 4096: 1065 16 32 | 4 14 37 8192: 2152 32 65 | 8 29 66 16384: 2234 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: 0 0 0 | 0 0 0 4096: 846 12 12 | 0 0 0 8192: 4112 62 75 | 0 0 0 16384: 1556 23 99 | 0 0 0 32768: 166 2 102 | 2 7 7 65536: 1 0 102 | 22 81 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-ffff95ae47e4a000.rpc_stats= snapshot_time: 1768301200.822272089 secs.nsecs start_time: 1768301008.193505097 secs.nsecs elapsed_time: 192.628766992 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 | 1 33 33 16384: 0 0 0 | 0 0 33 32768: 0 0 0 | 2 66 100 llite.lustre-ffff95ae47e4a000.read_ahead_stats= snapshot_time 1768301200.831595317 secs.nsecs start_time 1768301008.220765156 secs.nsecs elapsed_time 192.610830161 secs.nsecs hits 97794 samples [pages] misses 6527 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97795 samples [pages] failed_to_fast_read 6527 samples [pages] readahead_pages 6526 samples [pages] 2 15 97794