== sanity test 101a: check read-ahead for random reads === 00:19:41 (1744085981) nreads: 10000 file size: 96MB 26.923454s, 24.3416MB/s osc.lustre-OST0000-osc-ffff8800b67da000.rpc_stats= snapshot_time: 1744086011.244263806 secs.nsecs start_time: 1744085981.379963743 secs.nsecs elapsed_time: 29.864300063 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 8 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 1 100 100 osc.lustre-OST0001-osc-ffff8800b67da000.rpc_stats= snapshot_time: 1744086011.244328674 secs.nsecs start_time: 1744085981.379982193 secs.nsecs elapsed_time: 29.864346481 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 194 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 1 1 2: 3 0 0 | 0 0 1 4: 2 0 0 | 0 0 1 8: 4 0 0 | 0 0 1 16: 4981 99 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 99 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4990 100 100 | 100 99 99 2: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 5 0 0 | 0 0 2 32: 7 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 26 0 1 | 0 0 2 256: 52 1 2 | 1 0 3 512: 108 2 4 | 2 1 5 1024: 205 4 8 | 4 3 9 2048: 428 8 17 | 8 7 17 4096: 858 17 34 | 16 15 33 8192: 1671 33 67 | 32 31 65 16384: 1611 32 100 | 35 34 100 llite.lustre-ffff8800b67da000.read_ahead_stats= snapshot_time 1744086011.247128834 secs.nsecs start_time 1744085981.383489933 secs.nsecs elapsed_time 29.863638901 secs.nsecs hits 74728 samples [pages] misses 4990 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74728 samples [pages] failed_to_fast_read 4990 samples [pages] readahead_pages 4990 samples [pages] 1 15 74728