== sanity test 101a: check read-ahead for random reads === 07:05:56 (1713438356) nreads: 10000 file size: 96MB 28.943056s, 22.6431MB/s osc.lustre-OST0000-osc-ffff8800b6fe3000.rpc_stats= snapshot_time: 1713438389.092566967 secs.nsecs start_time: 1713438356.973329868 secs.nsecs elapsed_time: 32.119237099 secs.nsecs read RPCs in flight: 0 write 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-ffff8800b6fe3000.rpc_stats= snapshot_time: 1713438389.092718260 secs.nsecs start_time: 1713438356.973402811 secs.nsecs elapsed_time: 32.119315449 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: 1 0 0 | 2 1 1 2: 1 0 0 | 1 0 2 4: 7 0 0 | 0 0 2 8: 8 0 0 | 0 0 2 16: 4990 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: 5007 100 100 | 100 98 98 2: 0 0 100 | 2 1 100 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: 5 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: 52 1 2 | 1 0 4 512: 108 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 431 8 17 | 8 7 18 4096: 860 17 34 | 16 15 34 8192: 1674 33 67 | 32 31 65 16384: 1620 32 100 | 35 34 100 llite.lustre-ffff8800b6fe3000.read_ahead_stats= snapshot_time 1713438389.095916232 secs.nsecs start_time 1713438356.977210853 secs.nsecs elapsed_time 32.118705379 secs.nsecs hits 74859 samples [pages] misses 5007 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74860 samples [pages] failed_to_fast_read 5007 samples [pages] readahead_pages 5006 samples [pages] 1 15 74859