== sanity test 101a: check read-ahead for random reads === 21:18:21 (1708827501) nreads: 10000 file size: 96MB 29.065018s, 22.5481MB/s osc.lustre-OST0000-osc-ffff88012e1b2800.rpc_stats= snapshot_time: 1708827534.082192751 secs.nsecs start_time: 1708827501.777750397 secs.nsecs elapsed_time: 32.304442354 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 | 2 50 100 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 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012e1b2800.rpc_stats= snapshot_time: 1708827534.082300078 secs.nsecs start_time: 1708827501.777830575 secs.nsecs elapsed_time: 32.304469503 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 960 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 7 7 2: 0 0 0 | 0 0 7 4: 3 0 0 | 0 0 7 8: 3 0 0 | 1 3 11 16: 6137 99 100 | 0 0 11 32: 0 0 100 | 0 0 11 64: 0 0 100 | 0 0 11 128: 0 0 100 | 0 0 11 256: 0 0 100 | 0 0 11 512: 0 0 100 | 0 0 11 1024: 0 0 100 | 24 88 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6143 100 100 | 25 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 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: 22 0 0 | 0 0 14 128: 37 0 1 | 0 0 14 256: 78 1 2 | 0 0 14 512: 146 2 4 | 0 0 14 1024: 280 4 9 | 1 3 18 2048: 624 10 19 | 2 7 25 4096: 1194 19 39 | 4 14 40 8192: 2073 33 72 | 8 29 70 16384: 1670 27 100 | 8 29 100 llite.lustre-ffff88012e1b2800.read_ahead_stats= snapshot_time 1708827534.084966037 secs.nsecs start_time 1708827501.781396578 secs.nsecs elapsed_time 32.303569459 secs.nsecs hits 92064 samples [pages] misses 6143 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 92064 samples [pages] failed_to_fast_read 6143 samples [pages] readahead_pages 6143 samples [pages] 3 15 92064