== sanity test 101a: check read-ahead for random reads === 21:17:39 (1708827459) nreads: 10000 file size: 96MB 25.024108s, 26.1891MB/s osc.lustre-OST0000-osc-ffff880079ad7000.rpc_stats= snapshot_time: 1708827487.461277411 secs.nsecs start_time: 1708827459.523172979 secs.nsecs elapsed_time: 27.938104432 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 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 1 25 75 4: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff880079ad7000.rpc_stats= snapshot_time: 1708827487.461431942 secs.nsecs start_time: 1708827459.523221328 secs.nsecs elapsed_time: 27.938210614 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: 2 0 0 | 1 0 2 4: 2 0 0 | 0 0 2 8: 2 0 0 | 0 0 2 16: 4997 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: 5003 100 100 | 96 94 94 2: 0 0 100 | 4 3 98 3: 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: 109 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 431 8 17 | 8 7 18 4096: 859 17 34 | 16 15 34 8192: 1673 33 67 | 32 31 65 16384: 1617 32 100 | 35 34 100 llite.lustre-ffff880079ad7000.read_ahead_stats= snapshot_time 1708827487.464780055 secs.nsecs start_time 1708827459.526446993 secs.nsecs elapsed_time 27.938333062 secs.nsecs hits 74939 samples [pages] misses 5003 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74939 samples [pages] failed_to_fast_read 5003 samples [pages] readahead_pages 5003 samples [pages] 1 15 74939