== sanity test 101a: check read-ahead for random reads === 15:59:11 (1788638351) nreads: 10000 file size: 96MB 180.659294s, 2.81683MB/s osc.lustre-OST0000-osc-ffff89cb0317f000.rpc_stats= snapshot_time: 1788638551.104932735 secs.nsecs start_time: 1788638353.179028241 secs.nsecs elapsed_time: 197.925904494 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: 2 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 6 0 0 | 1 3 7 16: 5117 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: 5126 100 100 | 27 100 100 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: 4 0 0 | 0 0 11 32: 7 0 0 | 0 0 11 64: 13 0 0 | 0 0 11 128: 21 0 0 | 0 0 11 256: 54 1 2 | 0 0 11 512: 111 2 4 | 0 0 11 1024: 194 3 7 | 1 3 14 2048: 447 8 16 | 2 7 22 4096: 846 16 33 | 4 14 37 8192: 1675 32 65 | 8 29 66 16384: 1748 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: 178 3 3 | 0 0 0 8192: 2212 43 46 | 0 0 0 16384: 2196 42 89 | 2 7 7 32768: 629 12 101 | 6 22 29 65536: 31 0 102 | 18 66 96 131072: 0 0 102 | 1 3 100 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-ffff89cb0317f000.rpc_stats= snapshot_time: 1788638551.105829740 secs.nsecs start_time: 1788638353.179062649 secs.nsecs elapsed_time: 197.926767091 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 | 0 0 0 16384: 0 0 0 | 3 100 100 llite.lustre-ffff89cb0317f000.read_ahead_stats= snapshot_time 1788638551.126733107 secs.nsecs start_time 1788638353.204225302 secs.nsecs elapsed_time 197.922507805 secs.nsecs hits 76764 samples [pages] misses 5126 samples [pages] readpage_not_consecutive 7761 samples [pages] zero_size_window 76765 samples [pages] failed_to_fast_read 5126 samples [pages] readahead_pages 5125 samples [pages] 1 15 76764