== sanity test 101a: check read-ahead for random reads === 11:26:37 (1722785197) nreads: 10000 file size: 96MB 32.087335s, 20.4243MB/s osc.lustre-OST0000-osc-ffff880091bb1800.rpc_stats= snapshot_time: 1722785238.198223564 secs.nsecs start_time: 1722785197.410601555 secs.nsecs elapsed_time: 40.787622009 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 3 3 2: 0 0 0 | 1 3 7 4: 6 0 0 | 0 0 7 8: 8 0 0 | 1 3 10 16: 6386 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: 6401 100 100 | 27 96 96 2: 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: 6 0 0 | 0 0 14 32: 7 0 0 | 0 0 14 64: 21 0 0 | 0 0 14 128: 35 0 1 | 0 0 14 256: 73 1 2 | 0 0 14 512: 137 2 4 | 0 0 14 1024: 264 4 8 | 1 3 17 2048: 579 9 17 | 2 7 25 4096: 1135 17 35 | 4 14 39 8192: 2230 34 70 | 8 28 67 16384: 1909 29 100 | 9 32 100 osc.lustre-OST0001-osc-ffff880091bb1800.rpc_stats= snapshot_time: 1722785238.198441222 secs.nsecs start_time: 1722785197.410688468 secs.nsecs elapsed_time: 40.787752754 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 | 2 50 50 2: 0 0 0 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 llite.lustre-ffff880091bb1800.read_ahead_stats= snapshot_time 1722785238.201522600 secs.nsecs start_time 1722785197.414026021 secs.nsecs elapsed_time 40.787496579 secs.nsecs hits 95817 samples [pages] misses 6401 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95817 samples [pages] failed_to_fast_read 6401 samples [pages] readahead_pages 6400 samples [pages] 2 15 95817