== sanity test 101a: check read-ahead for random reads === 10:56:16 (1772466976) nreads: 10000 file size: 96MB 180.465668s, 3.49604MB/s osc.lustre-OST0000-osc-ffff944dd166f800.rpc_stats= snapshot_time: 1772467182.082797988 secs.nsecs start_time: 1772466978.578110043 secs.nsecs elapsed_time: 203.504687945 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: 1 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 9 0 0 | 0 0 3 16: 6308 99 100 | 0 0 3 32: 0 0 100 | 0 0 3 64: 0 0 100 | 0 0 3 128: 0 0 100 | 0 0 3 256: 0 0 100 | 0 0 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6319 100 100 | 25 96 96 2: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 2 7 7 1: 0 0 0 | 0 0 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 0 0 0 | 0 0 7 16: 5 0 0 | 0 0 7 32: 7 0 0 | 0 0 7 64: 22 0 0 | 0 0 7 128: 30 0 1 | 0 0 7 256: 67 1 2 | 0 0 7 512: 133 2 4 | 0 0 7 1024: 252 3 8 | 1 3 11 2048: 523 8 16 | 2 7 19 4096: 1038 16 32 | 4 15 34 8192: 2057 32 65 | 8 30 65 16384: 2182 34 100 | 9 34 100 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: 6 0 0 | 0 0 0 4096: 1046 16 16 | 0 0 0 8192: 3283 51 68 | 0 0 0 16384: 1849 29 97 | 1 3 3 32768: 281 4 102 | 1 3 7 65536: 3 0 102 | 17 65 73 131072: 0 0 102 | 7 26 100 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-ffff944dd166f800.rpc_stats= snapshot_time: 1772467182.082938690 secs.nsecs start_time: 1772466978.578154311 secs.nsecs elapsed_time: 203.504784379 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 | 1 50 50 2: 0 0 0 | 0 0 50 4: 0 0 0 | 0 0 50 8: 0 0 0 | 1 50 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 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 | 1 50 50 16384: 0 0 0 | 0 0 50 32768: 0 0 0 | 1 50 100 llite.lustre-ffff944dd166f800.read_ahead_stats= snapshot_time 1772467182.119584713 secs.nsecs start_time 1772466978.615565294 secs.nsecs elapsed_time 203.504019419 secs.nsecs hits 94637 samples [pages] misses 6319 samples [pages] readpage_not_consecutive 9619 samples [pages] zero_size_window 94638 samples [pages] failed_to_fast_read 6319 samples [pages] readahead_pages 6318 samples [pages] 1 15 94637