== sanity test 101a: check read-ahead for random reads === 22:50:40 (1739505040) nreads: 10000 file size: 96MB 91.784050s, 7.14024MB/s osc.lustre-OST0000-osc-ffff88012b23e000.rpc_stats= snapshot_time: 1739505142.722395858 secs.nsecs start_time: 1739505041.840016263 secs.nsecs elapsed_time: 100.882379595 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-ffff88012b23e000.rpc_stats= snapshot_time: 1739505142.722604191 secs.nsecs start_time: 1739505041.840093193 secs.nsecs elapsed_time: 100.882510998 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 1 1 2: 0 0 0 | 1 0 2 4: 1 0 0 | 0 0 2 8: 6 0 0 | 0 0 2 16: 5046 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: 5047 99 99 | 97 94 94 2: 6 0 100 | 5 4 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: 109 2 4 | 2 1 6 1024: 206 4 8 | 4 3 10 2048: 427 8 16 | 8 7 18 4096: 853 16 33 | 16 15 33 8192: 1677 33 66 | 32 31 65 16384: 1673 33 100 | 36 34 100 llite.lustre-ffff88012b23e000.read_ahead_stats= snapshot_time 1739505142.731102200 secs.nsecs start_time 1739505041.851147321 secs.nsecs elapsed_time 100.879954879 secs.nsecs hits 75701 samples [pages] misses 5053 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75701 samples [pages] failed_to_fast_read 5053 samples [pages] readahead_pages 5053 samples [pages] 2 15 75701