== sanity test 101a: check read-ahead for random reads === 02:14:43 (1779689683) nreads: 10000 file size: 96MB 172.460328s, 3.80006MB/s osc.lustre-OST0000-osc-ffff98884cbf9800.rpc_stats= snapshot_time: 1779689874.857442913 secs.nsecs start_time: 1779689685.724424186 secs.nsecs elapsed_time: 189.133018727 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 2: 1 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 8 0 0 | 0 0 0 16: 6536 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: 6545 100 100 | 25 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 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: 32 0 1 | 0 0 4 256: 71 1 2 | 0 0 4 512: 132 2 4 | 0 0 4 1024: 250 3 7 | 1 4 8 2048: 552 8 16 | 2 8 16 4096: 1074 16 32 | 4 16 32 8192: 2148 32 65 | 8 32 64 16384: 2248 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: 400 6 6 | 0 0 0 8192: 4350 66 72 | 0 0 0 16384: 1702 26 98 | 0 0 0 32768: 237 3 102 | 2 8 8 65536: 10 0 102 | 20 80 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-ffff98884cbf9800.rpc_stats= snapshot_time: 1779689874.857722823 secs.nsecs start_time: 1779689685.724459398 secs.nsecs elapsed_time: 189.133263425 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-ffff98884cbf9800.read_ahead_stats= snapshot_time 1779689874.867677071 secs.nsecs start_time 1779689685.742394388 secs.nsecs elapsed_time 189.125282683 secs.nsecs hits 98045 samples [pages] misses 6545 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98045 samples [pages] failed_to_fast_read 6545 samples [pages] readahead_pages 6545 samples [pages] 1 15 98045