== sanity test 101a: check read-ahead for random reads === 12:20:26 (1784046026) nreads: 10000 file size: 96MB 180.317059s, 3.2834MB/s osc.lustre-OST0000-osc-ffff98ae93d73800.rpc_stats= snapshot_time: 1784046227.093587558 secs.nsecs start_time: 1784046028.360095448 secs.nsecs elapsed_time: 198.733492110 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-ffff98ae93d73800.rpc_stats= snapshot_time: 1784046227.093683506 secs.nsecs start_time: 1784046028.360130794 secs.nsecs elapsed_time: 198.733552712 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: 2 0 0 | 0 0 0 4: 3 0 0 | 0 0 0 8: 3 0 0 | 0 0 0 16: 5941 99 100 | 1 3 3 32: 0 0 100 | 1 3 6 64: 0 0 100 | 1 3 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 1 3 13 1024: 0 0 100 | 25 86 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5949 100 100 | 25 86 86 2: 0 0 100 | 2 6 93 3: 0 0 100 | 1 3 96 4: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 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: 6 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 19 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 60 1 2 | 4 13 17 512: 100 1 3 | 0 0 17 1024: 232 3 7 | 1 3 20 2048: 511 8 16 | 2 6 27 4096: 985 16 32 | 4 13 41 8192: 1976 33 66 | 8 27 68 16384: 2021 33 100 | 9 31 100 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: 399 6 6 | 0 0 0 8192: 3415 57 64 | 0 0 0 16384: 1830 30 94 | 1 3 3 32768: 420 7 101 | 4 13 17 65536: 25 0 102 | 22 75 93 131072: 0 0 102 | 2 6 100 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-ffff98ae93d73800.read_ahead_stats= snapshot_time 1784046227.108187925 secs.nsecs start_time 1784046028.375109235 secs.nsecs elapsed_time 198.733078690 secs.nsecs hits 89107 samples [pages] misses 5949 samples [pages] readpage_not_consecutive 9029 samples [pages] zero_size_window 89107 samples [pages] failed_to_fast_read 5949 samples [pages] readahead_pages 5949 samples [pages] 1 15 89107