== sanity test 101a: check read-ahead for random reads === 08:50:42 (1724763042) nreads: 10000 file size: 96MB 38.140558s, 17.1828MB/s osc.lustre-OST0000-osc-ffff8800b58f7800.rpc_stats= snapshot_time: 1724763085.181550981 secs.nsecs start_time: 1724763043.176575829 secs.nsecs elapsed_time: 42.004975152 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 | 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 | 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 osc.lustre-OST0001-osc-ffff8800b58f7800.rpc_stats= snapshot_time: 1724763085.181720519 secs.nsecs start_time: 1724763043.176651825 secs.nsecs elapsed_time: 42.005068694 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 1 1 2: 3 0 0 | 1 0 2 4: 4 0 0 | 0 0 2 8: 7 0 0 | 0 0 2 16: 4996 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: 5010 100 100 | 96 93 93 2: 0 0 100 | 5 4 98 3: 0 0 100 | 2 1 100 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: 5 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 52 1 2 | 1 0 4 512: 108 2 4 | 2 1 6 1024: 203 4 8 | 4 3 10 2048: 428 8 16 | 8 7 18 4096: 854 17 33 | 16 15 33 8192: 1674 33 67 | 32 31 65 16384: 1634 32 100 | 36 34 100 llite.lustre-ffff8800b58f7800.read_ahead_stats= snapshot_time 1724763085.185660448 secs.nsecs start_time 1724763043.180307406 secs.nsecs elapsed_time 42.005353042 secs.nsecs hits 74954 samples [pages] misses 5010 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74954 samples [pages] failed_to_fast_read 5010 samples [pages] readahead_pages 5010 samples [pages] 1 15 74954