== sanity test 101a: check read-ahead for random reads === 15:28:39 (1713209319) nreads: 10000 file size: 96MB 35.226024s, 18.6044MB/s osc.lustre-OST0000-osc-ffff8800aab8c000.rpc_stats= snapshot_time: 1713209358.626999710 secs.nsecs start_time: 1713209319.815754272 secs.nsecs elapsed_time: 38.811245438 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: 1 0 0 | 1 0 0 2: 1 0 0 | 1 0 1 4: 6 0 0 | 0 0 1 8: 2 0 0 | 0 0 1 16: 4993 99 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 100 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5003 100 100 | 96 94 94 2: 0 0 100 | 2 1 96 3: 0 0 100 | 1 0 97 4: 0 0 100 | 1 0 98 5: 0 0 100 | 2 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 5 0 0 | 0 0 2 32: 7 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 26 0 1 | 0 0 2 256: 52 1 2 | 1 0 3 512: 107 2 4 | 2 1 5 1024: 203 4 8 | 4 3 9 2048: 430 8 16 | 8 7 17 4096: 855 17 34 | 16 15 33 8192: 1671 33 67 | 32 31 64 16384: 1628 32 100 | 36 35 100 osc.lustre-OST0001-osc-ffff8800aab8c000.rpc_stats= snapshot_time: 1713209358.627140535 secs.nsecs start_time: 1713209319.815805410 secs.nsecs elapsed_time: 38.811335125 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 60 60 2: 0 0 0 | 1 20 80 4: 0 0 0 | 0 0 80 8: 0 0 0 | 1 20 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 40 40 2: 0 0 0 | 1 20 60 3: 0 0 0 | 1 20 80 4: 0 0 0 | 1 20 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 5 100 100 llite.lustre-ffff8800aab8c000.read_ahead_stats= snapshot_time 1713209358.630185118 secs.nsecs start_time 1713209319.819072181 secs.nsecs elapsed_time 38.811112937 secs.nsecs hits 74892 samples [pages] misses 5003 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74893 samples [pages] failed_to_fast_read 5003 samples [pages] readahead_pages 5002 samples [pages] 1 15 74892