== sanity test 101a: check read-ahead for random reads === 12:44:40 (1731347080) nreads: 10000 file size: 96MB 35.261783s, 18.5856MB/s osc.lustre-OST0000-osc-ffff88007b5c5800.rpc_stats= snapshot_time: 1731347143.461398590 secs.nsecs start_time: 1731347080.847619225 secs.nsecs elapsed_time: 62.613779365 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 | 1 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 1 100 100 osc.lustre-OST0001-osc-ffff88007b5c5800.rpc_stats= snapshot_time: 1731347143.461525753 secs.nsecs start_time: 1731347080.847676943 secs.nsecs elapsed_time: 62.613848810 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 | 0 0 0 2: 3 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 4 0 0 | 0 0 0 16: 5002 99 100 | 1360 98 98 32: 0 0 100 | 0 0 98 64: 0 0 100 | 0 0 98 128: 0 0 100 | 0 0 98 256: 0 0 100 | 16 1 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5010 100 100 | 1376 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 0 0 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: 4 0 0 | 1 0 0 32: 6 0 0 | 2 0 0 64: 16 0 0 | 4 0 0 128: 26 0 1 | 8 0 1 256: 52 1 2 | 16 1 2 512: 107 2 4 | 32 2 4 1024: 203 4 8 | 64 4 9 2048: 425 8 16 | 128 9 18 4096: 852 17 33 | 256 18 37 8192: 1665 33 67 | 512 37 74 16384: 1651 32 100 | 352 25 100 llite.lustre-ffff88007b5c5800.read_ahead_stats= snapshot_time 1731347143.465424675 secs.nsecs start_time 1731347080.851413137 secs.nsecs elapsed_time 62.614011538 secs.nsecs hits 75025 samples [pages] misses 5010 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75025 samples [pages] failed_to_fast_read 5010 samples [pages] readahead_pages 5010 samples [pages] 1 15 75025