== sanity test 101a: check read-ahead for random reads === 21:13:38 (1713402818) nreads: 10000 file size: 96MB 29.789402s, 21.9998MB/s osc.lustre-OST0000-osc-ffff880079038800.rpc_stats= snapshot_time: 1713402860.433741782 secs.nsecs start_time: 1713402819.195547228 secs.nsecs elapsed_time: 41.238194554 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 | 1 3 3 2: 0 0 0 | 1 3 7 4: 4 0 0 | 0 0 7 8: 5 0 0 | 1 3 10 16: 6380 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6389 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 6 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 21 0 0 | 0 0 14 128: 32 0 1 | 0 0 14 256: 73 1 2 | 0 0 14 512: 136 2 4 | 0 0 14 1024: 274 4 8 | 1 3 17 2048: 587 9 17 | 2 7 25 4096: 1141 17 35 | 4 14 39 8192: 2291 35 71 | 8 28 67 16384: 1815 28 100 | 9 32 100 osc.lustre-OST0001-osc-ffff880079038800.rpc_stats= snapshot_time: 1713402860.433860444 secs.nsecs start_time: 1713402819.195616413 secs.nsecs elapsed_time: 41.238244031 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 | 3 75 75 2: 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 llite.lustre-ffff880079038800.read_ahead_stats= snapshot_time 1713402860.436633623 secs.nsecs start_time 1713402819.199002620 secs.nsecs elapsed_time 41.237631003 secs.nsecs hits 95699 samples [pages] misses 6389 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95699 samples [pages] failed_to_fast_read 6389 samples [pages] readahead_pages 6389 samples [pages] 3 15 95699