== sanity test 101a: check read-ahead for random reads === 09:48:05 (1789134485) nreads: 10000 file size: 96MB 180.803680s, 3.29449MB/s osc.lustre-OST0000-osc-ffff8b047b5c9000.rpc_stats= snapshot_time: 1789134680.112167951 secs.nsecs start_time: 1789134486.589158928 secs.nsecs elapsed_time: 193.523009023 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-ffff8b047b5c9000.rpc_stats= snapshot_time: 1789134680.112470770 secs.nsecs start_time: 1789134486.589185425 secs.nsecs elapsed_time: 193.523285345 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: 1 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 5957 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 | 1 3 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: 5963 100 100 | 26 100 100 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: 5 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 20 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 60 1 2 | 0 0 3 512: 112 1 3 | 1 3 7 1024: 235 3 7 | 1 3 11 2048: 503 8 16 | 2 7 19 4096: 991 16 32 | 4 15 34 8192: 1960 32 65 | 8 30 65 16384: 2039 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: 0 0 0 | 0 0 0 4096: 623 10 10 | 0 0 0 8192: 3103 52 62 | 0 0 0 16384: 1996 33 95 | 0 0 0 32768: 362 6 102 | 14 53 53 65536: 18 0 102 | 12 46 100 131072: 1 0 102 | 0 0 100 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-ffff8b047b5c9000.read_ahead_stats= snapshot_time 1789134680.130908473 secs.nsecs start_time 1789134486.625192020 secs.nsecs elapsed_time 193.505716453 secs.nsecs hits 89363 samples [pages] misses 5963 samples [pages] readpage_not_consecutive 9084 samples [pages] zero_size_window 89363 samples [pages] failed_to_fast_read 5963 samples [pages] readahead_pages 5963 samples [pages] 1 15 89363