== sanity test 101a: check read-ahead for random reads === 13:06:34 (1750179994) nreads: 10000 file size: 96MB 70.064906s, 9.35361MB/s osc.lustre-OST0000-osc-ffff880077057000.rpc_stats= snapshot_time: 1750180072.350556381 secs.nsecs start_time: 1750179995.385875585 secs.nsecs elapsed_time: 76.964680796 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO 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-ffff880077057000.rpc_stats= snapshot_time: 1750180072.350621888 secs.nsecs start_time: 1750179995.385893681 secs.nsecs elapsed_time: 76.964728207 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 1 0 0 | 2 1 1 2: 4 0 0 | 1 0 2 4: 1 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 5025 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: 5029 99 99 | 101 98 98 2: 2 0 100 | 1 0 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: 4 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: 53 1 2 | 1 0 4 512: 106 2 4 | 2 1 6 1024: 208 4 8 | 4 3 10 2048: 431 8 16 | 8 7 18 4096: 854 16 33 | 16 15 33 8192: 1672 33 67 | 32 31 65 16384: 1652 32 100 | 36 34 100 llite.lustre-ffff880077057000.read_ahead_stats= snapshot_time 1750180072.356616016 secs.nsecs start_time 1750179995.393342831 secs.nsecs elapsed_time 76.963273185 secs.nsecs hits 75369 samples [pages] misses 5031 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75369 samples [pages] failed_to_fast_read 5031 samples [pages] readahead_pages 5030 samples [pages] 1 15 75369