== sanity test 101a: check read-ahead for random reads === 13:26:43 (1744046803) nreads: 10000 file size: 96MB 39.954154s, 16.4028MB/s osc.lustre-OST0000-osc-ffff8800b5c8f800.rpc_stats= snapshot_time: 1744046853.088280885 secs.nsecs start_time: 1744046803.998639317 secs.nsecs elapsed_time: 49.089641568 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO 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 | 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-ffff8800b5c8f800.rpc_stats= snapshot_time: 1744046853.088396652 secs.nsecs start_time: 1744046803.998655557 secs.nsecs elapsed_time: 49.089741095 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO 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: 1 0 0 | 1 3 7 4: 1 0 0 | 0 0 7 8: 2 0 0 | 1 3 10 16: 6379 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: 6383 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: 4 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: 6 0 0 | 0 0 14 32: 7 0 0 | 0 0 14 64: 23 0 0 | 0 0 14 128: 33 0 1 | 0 0 14 256: 72 1 2 | 0 0 14 512: 135 2 4 | 0 0 14 1024: 269 4 8 | 1 3 17 2048: 564 8 17 | 2 7 25 4096: 1105 17 34 | 4 14 39 8192: 2181 34 68 | 8 28 67 16384: 1984 31 100 | 9 32 100 llite.lustre-ffff8800b5c8f800.read_ahead_stats= snapshot_time 1744046853.092586747 secs.nsecs start_time 1744046804.001641603 secs.nsecs elapsed_time 49.090945144 secs.nsecs hits 95682 samples [pages] misses 6383 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95682 samples [pages] failed_to_fast_read 6383 samples [pages] readahead_pages 6383 samples [pages] 1 15 95682