== sanity test 101a: check read-ahead for random reads === 19:05:57 (1753743957) nreads: 10000 file size: 96MB 157.122654s, 4.17101MB/s osc.lustre-OST0000-osc-ffff8f8ac2dc0800.rpc_stats= snapshot_time: 1753744131.808069585 secs.nsecs start_time: 1753743959.761462728 secs.nsecs elapsed_time: 172.046606857 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 | 1 50 50 2: 0 0 0 | 0 0 50 4: 0 0 0 | 0 0 50 8: 0 0 0 | 1 50 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 osc.lustre-OST0001-osc-ffff8f8ac2dc0800.rpc_stats= snapshot_time: 1753744131.808140793 secs.nsecs start_time: 1753743959.761500787 secs.nsecs elapsed_time: 172.046640006 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 | 1 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 5028 99 100 | 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 | 100 99 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5027 99 99 | 99 98 98 2: 5 0 100 | 2 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 2 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 26 0 1 | 0 0 1 256: 52 1 2 | 1 0 2 512: 107 2 4 | 2 1 4 1024: 207 4 8 | 4 3 8 2048: 427 8 16 | 8 7 16 4096: 854 16 33 | 16 15 32 8192: 1673 33 67 | 32 31 64 16384: 1657 32 100 | 36 35 100 llite.lustre-ffff8f8ac2dc0800.read_ahead_stats= snapshot_time 1753744131.817052342 secs.nsecs start_time 1753743959.778200265 secs.nsecs elapsed_time 172.038852077 secs.nsecs hits 75423 samples [pages] misses 5032 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75423 samples [pages] failed_to_fast_read 5032 samples [pages] readahead_pages 5032 samples [pages] 4 15 75423