== sanity test 101a: check read-ahead for random reads === 08:46:10 (1748868370) nreads: 10000 file size: 96MB 36.874310s, 17.7728MB/s osc.lustre-OST0000-osc-ffff8800a9d65800.rpc_stats= snapshot_time: 1748868411.266964543 secs.nsecs start_time: 1748868370.796460418 secs.nsecs elapsed_time: 40.470504125 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 | 2 50 50 2: 0 0 0 | 1 25 75 4: 0 0 0 | 0 0 75 8: 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-ffff8800a9d65800.rpc_stats= snapshot_time: 1748868411.267015553 secs.nsecs start_time: 1748868370.796472062 secs.nsecs elapsed_time: 40.470543491 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 | 2 1 1 2: 1 0 0 | 1 0 2 4: 3 0 0 | 0 0 2 8: 4 0 0 | 0 0 2 16: 5008 99 100 | 0 0 2 32: 0 0 100 | 0 0 2 64: 0 0 100 | 0 0 2 128: 0 0 100 | 0 0 2 256: 0 0 100 | 100 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5016 100 100 | 101 98 98 2: 0 0 100 | 1 0 99 3: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 4 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 5 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 25 0 1 | 0 0 3 256: 59 1 2 | 1 0 4 512: 111 2 4 | 2 1 6 1024: 207 4 8 | 4 3 10 2048: 441 8 17 | 8 7 18 4096: 886 17 35 | 16 15 33 8192: 1726 34 69 | 32 31 65 16384: 1531 30 100 | 36 34 100 llite.lustre-ffff8800a9d65800.read_ahead_stats= snapshot_time 1748868411.270674846 secs.nsecs start_time 1748868370.802529840 secs.nsecs elapsed_time 40.468145006 secs.nsecs hits 75116 samples [pages] misses 5016 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75116 samples [pages] failed_to_fast_read 5016 samples [pages] readahead_pages 5016 samples [pages] 1 15 75116