== sanity test 101a: check read-ahead for random reads === 10:43:10 (1761316990) nreads: 10000 file size: 96MB 57.533199s, 11.391MB/s osc.lustre-OST0000-osc-ffff9918c659e000.rpc_stats= snapshot_time: 1761317051.025855622 secs.nsecs start_time: 1761316991.471225525 secs.nsecs elapsed_time: 59.554630097 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 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 osc.lustre-OST0001-osc-ffff9918c659e000.rpc_stats= snapshot_time: 1761317051.025966453 secs.nsecs start_time: 1761316991.471255435 secs.nsecs elapsed_time: 59.554711018 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 1 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5083 100 100 | 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 | 100 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5074 99 99 | 30 29 29 2: 9 0 100 | 57 55 85 3: 0 0 100 | 13 12 98 4: 0 0 100 | 1 0 99 5: 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: 4 0 0 | 0 0 2 32: 6 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 27 0 1 | 0 0 2 256: 53 1 2 | 1 0 3 512: 109 2 4 | 2 1 5 1024: 205 4 8 | 4 3 9 2048: 433 8 16 | 8 7 17 4096: 866 17 33 | 16 15 33 8192: 1692 33 67 | 32 31 64 16384: 1669 32 100 | 36 35 100 llite.lustre-ffff9918c659e000.read_ahead_stats= snapshot_time 1761317051.038470654 secs.nsecs start_time 1761316991.491716839 secs.nsecs elapsed_time 59.546753815 secs.nsecs hits 76243 samples [pages] misses 5083 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76243 samples [pages] failed_to_fast_read 5083 samples [pages]