== sanity test 101a: check read-ahead for random reads === 04:14:48 (1712477688) nreads: 10000 file size: 96MB 54.065937s, 12.1215MB/s osc.lustre-OST0000-osc-ffff8800a761a800.rpc_stats= snapshot_time: 1712477752.043216056 secs.nsecs start_time: 1712477689.522881900 secs.nsecs elapsed_time: 62.520334156 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-ffff8800a761a800.rpc_stats= snapshot_time: 1712477752.043434470 secs.nsecs start_time: 1712477689.522970427 secs.nsecs elapsed_time: 62.520464043 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 7 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 4 0 0 | 1 3 10 16: 6382 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: 6386 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: 21 0 0 | 0 0 14 128: 33 0 1 | 0 0 14 256: 72 1 2 | 0 0 14 512: 138 2 4 | 0 0 14 1024: 268 4 8 | 1 3 17 2048: 582 9 17 | 2 7 25 4096: 1125 17 35 | 4 14 39 8192: 2201 34 69 | 8 28 67 16384: 1928 30 100 | 9 32 100 llite.lustre-ffff8800a761a800.read_ahead_stats= snapshot_time 1712477752.049174852 secs.nsecs start_time 1712477689.528561430 secs.nsecs elapsed_time 62.520613422 secs.nsecs hits 95728 samples [pages] misses 6386 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95728 samples [pages] failed_to_fast_read 6386 samples [pages] readahead_pages 6386 samples [pages] 5 15 95728