== sanity test 101a: check read-ahead for random reads === 18:59:38 (1736985578) nreads: 10000 file size: 96MB 20.273533s, 32.3259MB/s osc.lustre-OST0000-osc-ffff8800aa662000.rpc_stats= snapshot_time: 1736985600.012112933 secs.nsecs start_time: 1736985578.792520340 secs.nsecs elapsed_time: 21.219592593 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 968 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 6611 100 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 24 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6609 99 99 | 23 95 95 2: 2 0 100 | 1 4 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 19 0 0 | 0 0 4 128: 32 0 1 | 0 0 4 256: 74 1 2 | 0 0 4 512: 136 2 4 | 0 0 4 1024: 259 3 8 | 1 4 8 2048: 587 8 17 | 2 8 16 4096: 1118 16 33 | 4 16 33 8192: 2243 33 67 | 8 33 66 16384: 2124 32 100 | 8 33 100 osc.lustre-OST0001-osc-ffff8800aa662000.rpc_stats= snapshot_time: 1736985600.012269052 secs.nsecs start_time: 1736985578.792584247 secs.nsecs elapsed_time: 21.219684805 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 5 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 llite.lustre-ffff8800aa662000.read_ahead_stats= snapshot_time 1736985600.016534097 secs.nsecs start_time 1736985578.798245079 secs.nsecs elapsed_time 21.218289018 secs.nsecs hits 99163 samples [pages] misses 6611 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 99163 samples [pages] failed_to_fast_read 6611 samples [pages]