== sanity test 101a: check read-ahead for random reads === 09:04:27 (1774530267) nreads: 10000 file size: 96MB 23.951653s, 27.3618MB/s osc.lustre-OST0000-osc-ffff9ae5081e1800.rpc_stats= snapshot_time: 1774530293.704913819 secs.nsecs start_time: 1774530268.549471314 secs.nsecs elapsed_time: 25.155442505 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 1 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 | 1 50 50 2: 0 0 0 | 1 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 osc.lustre-OST0001-osc-ffff9ae5081e1800.rpc_stats= snapshot_time: 1774530293.705026034 secs.nsecs start_time: 1774530268.549504218 secs.nsecs elapsed_time: 25.155521816 secs.nsecs read RPCs in flight: 0 write 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 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5075 100 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 99 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5073 99 99 | 82 81 81 2: 2 0 100 | 19 18 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 4 0 0 | 0 0 2 32: 6 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 27 0 1 | 0 0 2 256: 53 1 2 | 1 0 3 512: 109 2 4 | 2 1 5 1024: 207 4 8 | 4 3 9 2048: 433 8 16 | 8 7 17 4096: 866 17 33 | 16 15 33 8192: 1695 33 67 | 32 31 65 16384: 1656 32 100 | 35 34 100 llite.lustre-ffff9ae5081e1800.read_ahead_stats= snapshot_time 1774530293.711012154 secs.nsecs start_time 1774530268.557777528 secs.nsecs elapsed_time 25.153234626 secs.nsecs hits 76125 samples [pages] misses 5075 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76125 samples [pages] failed_to_fast_read 5075 samples [pages]