== sanity test 101a: check read-ahead for random reads === 22:52:40 (1743735160) nreads: 10000 file size: 96MB 48.430208s, 13.5321MB/s osc.lustre-OST0000-osc-ffff8800a7efd800.rpc_stats= snapshot_time: 1743735211.995998492 secs.nsecs start_time: 1743735160.628270135 secs.nsecs elapsed_time: 51.367728357 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 | 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 osc.lustre-OST0001-osc-ffff8800a7efd800.rpc_stats= snapshot_time: 1743735211.996192793 secs.nsecs start_time: 1743735160.628293688 secs.nsecs elapsed_time: 51.367899105 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: 0 0 0 | 1 0 2 4: 3 0 0 | 0 0 2 8: 11 0 0 | 0 0 2 16: 5064 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: 5078 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: 7 0 0 | 0 0 3 64: 15 0 0 | 0 0 3 128: 25 0 1 | 0 0 3 256: 55 1 2 | 1 0 4 512: 106 2 4 | 2 1 6 1024: 209 4 8 | 4 3 10 2048: 434 8 16 | 8 7 18 4096: 868 17 34 | 16 15 33 8192: 1680 33 67 | 32 31 65 16384: 1671 32 100 | 36 34 100 llite.lustre-ffff8800a7efd800.read_ahead_stats= snapshot_time 1743735211.999793612 secs.nsecs start_time 1743735160.634248939 secs.nsecs elapsed_time 51.365544673 secs.nsecs hits 76017 samples [pages] misses 5078 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76017 samples [pages] failed_to_fast_read 5078 samples [pages] readahead_pages 5078 samples [pages] 2 15 76017