== sanity test 101a: check read-ahead for random reads === 05:35:07 (1730802907) nreads: 10000 file size: 96MB 35.008295s, 18.7201MB/s osc.lustre-OST0000-osc-ffff8800a8faf000.rpc_stats= snapshot_time: 1730802947.004784283 secs.nsecs start_time: 1730802908.118324139 secs.nsecs elapsed_time: 38.886460144 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-ffff8800a8faf000.rpc_stats= snapshot_time: 1730802947.004943946 secs.nsecs start_time: 1730802908.118382852 secs.nsecs elapsed_time: 38.886561094 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 1 1 2: 5 0 0 | 1 0 2 4: 2 0 0 | 0 0 2 8: 5 0 0 | 0 0 2 16: 4967 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: 4979 100 100 | 98 95 95 2: 0 0 100 | 4 3 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: 5 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: 58 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 208 4 8 | 4 3 10 2048: 439 8 17 | 8 7 18 4096: 881 17 35 | 16 15 33 8192: 1708 34 69 | 32 31 65 16384: 1520 30 100 | 36 34 100 llite.lustre-ffff8800a8faf000.read_ahead_stats= snapshot_time 1730802947.008870510 secs.nsecs start_time 1730802908.122456104 secs.nsecs elapsed_time 38.886414406 secs.nsecs hits 74503 samples [pages] misses 4979 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74503 samples [pages] failed_to_fast_read 4979 samples [pages] readahead_pages 4979 samples [pages] 1 15 74503