== sanity test 101a: check read-ahead for random reads === 17:08:21 (1712264901) nreads: 10000 file size: 96MB 36.860626s, 17.7794MB/s osc.lustre-OST0000-osc-ffff88012b0f0000.rpc_stats= snapshot_time: 1712264949.539248585 secs.nsecs start_time: 1712264901.870909082 secs.nsecs elapsed_time: 47.668339503 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 | 1 3 3 2: 0 0 0 | 1 3 7 4: 2 0 0 | 0 0 7 8: 6 0 0 | 1 3 10 16: 6339 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: 6347 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: 9 0 0 | 0 0 14 64: 22 0 0 | 0 0 14 128: 32 0 1 | 0 0 14 256: 71 1 2 | 0 0 14 512: 137 2 4 | 0 0 14 1024: 278 4 8 | 1 3 17 2048: 574 9 17 | 2 7 25 4096: 1157 18 36 | 4 14 39 8192: 2223 35 71 | 8 28 67 16384: 1834 28 100 | 9 32 100 osc.lustre-OST0001-osc-ffff88012b0f0000.rpc_stats= snapshot_time: 1712264949.539503945 secs.nsecs start_time: 1712264901.870976989 secs.nsecs elapsed_time: 47.668526956 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 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 llite.lustre-ffff88012b0f0000.read_ahead_stats= snapshot_time 1712264949.544124801 secs.nsecs start_time 1712264901.874747534 secs.nsecs elapsed_time 47.669377267 secs.nsecs hits 95092 samples [pages] misses 6347 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95092 samples [pages] failed_to_fast_read 6347 samples [pages] readahead_pages 6347 samples [pages] 3 15 95092