== sanity test 101a: check read-ahead for random reads === 18:39:59 (1788561599) nreads: 10000 file size: 96MB 180.706344s, 3.53599MB/s osc.lustre-OST0000-osc-ffffa0d6984e0800.rpc_stats= snapshot_time: 1788561800.086653338 secs.nsecs start_time: 1788561600.973485444 secs.nsecs elapsed_time: 199.113167894 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 osc.lustre-OST0001-osc-ffffa0d6984e0800.rpc_stats= snapshot_time: 1788561800.086797110 secs.nsecs start_time: 1788561600.973519730 secs.nsecs elapsed_time: 199.113277380 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: 4 0 0 | 0 0 0 8: 8 0 0 | 0 0 0 16: 6332 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: 6345 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: 30 0 1 | 0 0 4 256: 69 1 2 | 0 0 4 512: 129 2 4 | 0 0 4 1024: 247 3 8 | 1 4 8 2048: 537 8 16 | 2 8 16 4096: 1036 16 32 | 4 16 32 8192: 2088 32 65 | 8 32 64 16384: 2171 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: 1 0 0 | 0 0 0 4096: 808 12 12 | 0 0 0 8192: 3513 55 68 | 0 0 0 16384: 1809 28 96 | 0 0 0 32768: 340 5 101 | 5 20 20 65536: 23 0 102 | 18 72 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 llite.lustre-ffffa0d6984e0800.read_ahead_stats= snapshot_time 1788561800.122914010 secs.nsecs start_time 1788561601.006591973 secs.nsecs elapsed_time 199.116322037 secs.nsecs hits 95001 samples [pages] misses 6345 samples [pages] readpage_not_consecutive 9742 samples [pages] zero_size_window 95001 samples [pages] failed_to_fast_read 6345 samples [pages] readahead_pages 6345 samples [pages] 1 15 95001