== sanity test 101a: check read-ahead for random reads === 06:11:52 (1744020712) nreads: 10000 file size: 96MB 29.220543s, 22.4281MB/s osc.lustre-OST0000-osc-ffff880137386800.rpc_stats= snapshot_time: 1744020744.851901427 secs.nsecs start_time: 1744020712.497632744 secs.nsecs elapsed_time: 32.354268683 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 | 2 50 50 2: 0 0 0 | 1 25 75 4: 0 0 0 | 0 0 75 8: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff880137386800.rpc_stats= snapshot_time: 1744020744.851979249 secs.nsecs start_time: 1744020712.497651574 secs.nsecs elapsed_time: 32.354327675 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 192 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 1 1 2: 0 0 0 | 1 0 2 4: 3 0 0 | 0 0 2 8: 1 0 0 | 0 0 2 16: 4926 99 100 | 0 0 2 32: 0 0 100 | 0 0 2 64: 0 0 100 | 0 0 2 128: 0 0 100 | 0 0 2 256: 0 0 100 | 99 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4930 100 100 | 99 97 97 2: 0 0 100 | 2 1 99 3: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 4 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: 4 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 54 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 436 8 17 | 8 7 18 4096: 863 17 34 | 16 15 34 8192: 1688 34 69 | 32 31 65 16384: 1519 30 100 | 35 34 100 llite.lustre-ffff880137386800.read_ahead_stats= snapshot_time 1744020744.856139587 secs.nsecs start_time 1744020712.501832002 secs.nsecs elapsed_time 32.354307585 secs.nsecs hits 73892 samples [pages] misses 4930 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 73892 samples [pages] failed_to_fast_read 4930 samples [pages] readahead_pages 4930 samples [pages] 2 15 73892