== sanity test 101a: check read-ahead for random reads === 01:21:33 (1788844893) nreads: 10000 file size: 96MB 180.645540s, 3.29339MB/s osc.lustre-OST0000-osc-ffffa0d909048800.rpc_stats= snapshot_time: 1788845092.079480642 secs.nsecs start_time: 1788844895.248943030 secs.nsecs elapsed_time: 196.830537612 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 | 0 0 0 2: 3 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 8 0 0 | 0 0 0 16: 5932 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: 5945 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: 18 0 0 | 0 0 4 128: 25 0 1 | 0 0 4 256: 62 1 2 | 0 0 4 512: 124 2 4 | 0 0 4 1024: 226 3 7 | 1 4 8 2048: 509 8 16 | 2 8 16 4096: 970 16 32 | 4 16 32 8192: 1967 33 65 | 8 32 64 16384: 2025 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: 212 3 3 | 0 0 0 8192: 3188 53 57 | 0 0 0 16384: 2340 39 96 | 0 0 0 32768: 334 5 102 | 3 12 12 65536: 10 0 102 | 20 80 92 131072: 0 0 102 | 2 8 100 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-ffffa0d909048800.rpc_stats= snapshot_time: 1788845092.079697103 secs.nsecs start_time: 1788844895.248975142 secs.nsecs elapsed_time: 196.830721961 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-ffffa0d909048800.read_ahead_stats= snapshot_time 1788845092.093914841 secs.nsecs start_time 1788844895.266915923 secs.nsecs elapsed_time 196.826998918 secs.nsecs hits 89007 samples [pages] misses 5945 samples [pages] readpage_not_consecutive 9073 samples [pages] zero_size_window 89007 samples [pages] failed_to_fast_read 5945 samples [pages] readahead_pages 5944 samples [pages] 1 15 89007