== sanity test 101a: check read-ahead for random reads === 15:19:51 (1746127191) nreads: 10000 file size: 96MB 64.816895s, 10.1109MB/s osc.lustre-OST0000-osc-ffff88012beb4000.rpc_stats= snapshot_time: 1746127261.794268501 secs.nsecs start_time: 1746127191.875476043 secs.nsecs elapsed_time: 69.918792458 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-ffff88012beb4000.rpc_stats= snapshot_time: 1746127261.794379297 secs.nsecs start_time: 1746127191.875495515 secs.nsecs elapsed_time: 69.918883782 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: 0 0 0 | 0 0 2 16: 5062 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: 5064 99 99 | 101 98 98 2: 2 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: 4 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 206 4 8 | 4 3 10 2048: 430 8 16 | 8 7 18 4096: 857 16 33 | 16 15 33 8192: 1684 33 67 | 32 31 65 16384: 1671 32 100 | 36 34 100 llite.lustre-ffff88012beb4000.read_ahead_stats= snapshot_time 1746127261.800720296 secs.nsecs start_time 1746127191.881746721 secs.nsecs elapsed_time 69.918973575 secs.nsecs hits 75914 samples [pages] misses 5066 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75914 samples [pages] failed_to_fast_read 5066 samples [pages] readahead_pages 5066 samples [pages] 1 15 75914