== sanity test 101a: check read-ahead for random reads === 10:42:33 (1729089753) nreads: 10000 file size: 96MB 36.705705s, 17.8544MB/s osc.lustre-OST0000-osc-ffff8800a7099000.rpc_stats= snapshot_time: 1729089794.416477354 secs.nsecs start_time: 1729089753.933082623 secs.nsecs elapsed_time: 40.483394731 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-ffff8800a7099000.rpc_stats= snapshot_time: 1729089794.416617414 secs.nsecs start_time: 1729089753.933141164 secs.nsecs elapsed_time: 40.483476250 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: 0 0 0 | 1 0 2 4: 4 0 0 | 0 0 2 8: 4 0 0 | 0 0 2 16: 5006 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: 5014 100 100 | 101 98 98 2: 0 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: 5 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 57 1 2 | 1 0 4 512: 110 2 4 | 2 1 6 1024: 206 4 8 | 4 3 10 2048: 439 8 17 | 8 7 18 4096: 885 17 34 | 16 15 33 8192: 1723 34 69 | 32 31 65 16384: 1537 30 100 | 36 34 100 llite.lustre-ffff8800a7099000.read_ahead_stats= snapshot_time 1729089794.420131845 secs.nsecs start_time 1729089753.936782260 secs.nsecs elapsed_time 40.483349585 secs.nsecs hits 75106 samples [pages] misses 5014 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75106 samples [pages] failed_to_fast_read 5014 samples [pages] readahead_pages 5014 samples [pages] 3 15 75106