== sanity test 101a: check read-ahead for random reads === 15:24:01 (1746127441) nreads: 10000 file size: 96MB 93.898495s, 6.97945MB/s osc.lustre-OST0000-osc-ffff88012d515800.rpc_stats= snapshot_time: 1746127545.286514471 secs.nsecs start_time: 1746127442.345552852 secs.nsecs elapsed_time: 102.940961619 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 | 2 50 50 2: 0 0 0 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012d515800.rpc_stats= snapshot_time: 1746127545.286617369 secs.nsecs start_time: 1746127442.345854002 secs.nsecs elapsed_time: 102.940763367 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 1 1 2: 1 0 0 | 1 0 2 4: 3 0 0 | 0 0 2 8: 2 0 0 | 0 0 2 16: 5037 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 | 100 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5040 99 99 | 99 96 96 2: 3 0 100 | 3 2 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: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 106 2 4 | 2 1 6 1024: 208 4 8 | 4 3 10 2048: 427 8 16 | 8 7 18 4096: 852 16 33 | 16 15 33 8192: 1674 33 66 | 32 31 65 16384: 1668 33 100 | 36 34 100 llite.lustre-ffff88012d515800.read_ahead_stats= snapshot_time 1746127545.298517286 secs.nsecs start_time 1746127442.363339382 secs.nsecs elapsed_time 102.935177904 secs.nsecs hits 75548 samples [pages] misses 5043 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75548 samples [pages] failed_to_fast_read 5043 samples [pages] readahead_pages 5043 samples [pages] 1 15 75548