== sanity test 101a: check read-ahead for random reads === 07:42:32 (1750592552) nreads: 10000 file size: 96MB 119.333372s, 5.49184MB/s osc.lustre-OST0000-osc-ffff8801309d2000.rpc_stats= snapshot_time: 1750592716.910515894 secs.nsecs start_time: 1750592553.415455828 secs.nsecs elapsed_time: 163.495060066 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 66 66 2: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 33 33 2: 0 0 0 | 1 33 66 3: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 osc.lustre-OST0001-osc-ffff8801309d2000.rpc_stats= snapshot_time: 1750592716.910565078 secs.nsecs start_time: 1750592553.415475154 secs.nsecs elapsed_time: 163.495089924 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 2 2 2: 0 0 0 | 2 2 4 4: 0 0 0 | 0 0 4 8: 5 0 0 | 1 1 6 16: 6487 99 100 | 51 62 68 32: 0 0 100 | 0 0 68 64: 0 0 100 | 0 0 68 128: 0 0 100 | 0 0 68 256: 0 0 100 | 0 0 68 512: 0 0 100 | 1 1 69 1024: 0 0 100 | 25 30 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6488 99 99 | 61 74 74 2: 4 0 100 | 4 4 79 3: 0 0 100 | 3 3 82 4: 0 0 100 | 10 12 95 5: 0 0 100 | 4 4 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 5 6 6 1: 0 0 0 | 0 0 6 2: 0 0 0 | 0 0 6 4: 0 0 0 | 0 0 6 8: 0 0 0 | 0 0 6 16: 5 0 0 | 0 0 6 32: 8 0 0 | 0 0 6 64: 20 0 0 | 0 0 6 128: 29 0 1 | 0 0 6 256: 71 1 2 | 0 0 6 512: 135 2 4 | 0 0 6 1024: 268 4 8 | 3 3 9 2048: 548 8 16 | 9 10 20 4096: 1094 16 33 | 16 19 40 8192: 2157 33 66 | 34 41 81 16384: 2152 33 100 | 15 18 100 llite.lustre-ffff8801309d2000.read_ahead_stats= snapshot_time 1750592716.918570557 secs.nsecs start_time 1750592553.422822658 secs.nsecs elapsed_time 163.495747899 secs.nsecs hits 97295 samples [pages] misses 6492 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 97295 samples [pages] failed_to_fast_read 6492 samples [pages] readahead_pages 6492 samples [pages] 4 15 97295