== sanity test 101a: check read-ahead for random reads === 04:22:47 (1786004567) nreads: 10000 file size: 96MB 180.817000s, 2.23519MB/s osc.lustre-OST0000-osc-ffff982a85529000.rpc_stats= snapshot_time: 1786004775.086899853 secs.nsecs start_time: 1786004569.454462129 secs.nsecs elapsed_time: 205.632437724 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: 3 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 3 0 0 | 0 0 0 16: 4026 99 100 | 0 0 0 32: 0 0 100 | 1 3 3 64: 0 0 100 | 1 3 7 128: 0 0 100 | 0 0 7 256: 0 0 100 | 0 0 7 512: 0 0 100 | 1 3 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4032 99 99 | 25 89 89 2: 1 0 100 | 2 7 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 1 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 3 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 11 0 0 | 0 0 3 128: 18 0 1 | 0 0 3 256: 35 0 1 | 3 10 14 512: 78 1 3 | 0 0 14 1024: 154 3 7 | 1 3 17 2048: 353 8 16 | 2 7 25 4096: 660 16 32 | 4 14 39 8192: 1325 32 65 | 8 28 67 16384: 1386 34 100 | 9 32 100 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: 473 11 11 | 0 0 0 8192: 1181 29 41 | 0 0 0 16384: 1546 38 79 | 0 0 0 32768: 793 19 99 | 5 17 17 65536: 128 3 102 | 16 57 75 131072: 5 0 102 | 7 25 100 262144: 1 0 102 | 0 0 100 524288: 1 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-ffff982a85529000.rpc_stats= snapshot_time: 1786004775.087449637 secs.nsecs start_time: 1786004569.454493629 secs.nsecs elapsed_time: 205.632956008 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-ffff982a85529000.read_ahead_stats= snapshot_time 1786004775.099098704 secs.nsecs start_time 1786004569.493335162 secs.nsecs elapsed_time 205.605763542 secs.nsecs hits 60394 samples [pages] misses 4033 samples [pages] readpage_not_consecutive 6164 samples [pages] zero_size_window 60394 samples [pages] failed_to_fast_read 4033 samples [pages] readahead_pages 4033 samples [pages] 1 15 60394