== sanity test 101a: check read-ahead for random reads === 23:20:02 (1717557602) nreads: 10000 file size: 96MB 14.051498s, 46.6399MB/s osc.lustre-OST0000-osc-ffff8800b5d79800.rpc_stats= snapshot_time: 1717557617.766609126 secs.nsecs start_time: 1717557603.399061190 secs.nsecs elapsed_time: 14.367547936 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 9 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff8800b5d79800.rpc_stats= snapshot_time: 1717557617.766730664 secs.nsecs start_time: 1717557603.399137265 secs.nsecs elapsed_time: 14.367593399 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 196 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 4 0 0 | 0 0 0 8: 5 0 0 | 0 0 0 16: 5019 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 99 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5028 100 100 | 5 5 5 2: 0 0 100 | 17 17 22 3: 0 0 100 | 17 17 39 4: 0 0 100 | 20 20 59 5: 0 0 100 | 12 12 71 6: 0 0 100 | 5 5 76 7: 0 0 100 | 3 3 79 8: 0 0 100 | 6 6 85 9: 0 0 100 | 13 13 98 10: 0 0 100 | 1 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5 0 0 | 0 0 1 32: 7 0 0 | 0 0 1 64: 17 0 0 | 0 0 1 128: 26 0 1 | 0 0 1 256: 63 1 2 | 1 1 2 512: 121 2 4 | 2 2 4 1024: 233 4 9 | 4 4 8 2048: 485 9 19 | 8 8 16 4096: 956 19 38 | 16 16 32 8192: 1866 37 75 | 32 32 64 16384: 1245 24 100 | 35 35 100 llite.lustre-ffff8800b5d79800.read_ahead_stats= snapshot_time 1717557617.769847662 secs.nsecs start_time 1717557603.405445388 secs.nsecs elapsed_time 14.364402274 secs.nsecs hits 75283 samples [pages] misses 5028 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75283 samples [pages] failed_to_fast_read 5028 samples [pages] readahead_pages 5028 samples [pages] 2 15 75283