== sanity test 101a: check read-ahead for random reads === 05:09:00 (1726304940) nreads: 10000 file size: 96MB 39.559094s, 16.5666MB/s osc.lustre-OST0000-osc-ffff8800ab73f000.rpc_stats= snapshot_time: 1726304992.215327898 secs.nsecs start_time: 1726304940.812586114 secs.nsecs elapsed_time: 51.402741784 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 3 3 2: 1 0 0 | 1 3 7 4: 1 0 0 | 0 0 7 8: 4 0 0 | 1 3 10 16: 6319 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6325 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 5 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 23 0 0 | 0 0 14 128: 33 0 1 | 0 0 14 256: 71 1 2 | 0 0 14 512: 134 2 4 | 0 0 14 1024: 277 4 8 | 1 3 17 2048: 574 9 17 | 2 7 25 4096: 1138 17 35 | 4 14 39 8192: 2201 34 70 | 8 28 67 16384: 1856 29 100 | 9 32 100 osc.lustre-OST0001-osc-ffff8800ab73f000.rpc_stats= snapshot_time: 1726304992.215527973 secs.nsecs start_time: 1726304940.812660609 secs.nsecs elapsed_time: 51.402867364 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 75 75 2: 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 llite.lustre-ffff8800ab73f000.read_ahead_stats= snapshot_time 1726304992.220148018 secs.nsecs start_time 1726304940.817534743 secs.nsecs elapsed_time 51.402613275 secs.nsecs hits 94774 samples [pages] misses 6325 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 94774 samples [pages] failed_to_fast_read 6325 samples [pages] readahead_pages 6325 samples [pages] 1 15 94774