== sanity test 101a: check read-ahead for random reads === 05:40:03 (1712137203) nreads: 10000 file size: 96MB 36.642909s, 17.885MB/s osc.lustre-OST0000-osc-ffff8800b6077000.rpc_stats= snapshot_time: 1712137243.770199467 secs.nsecs start_time: 1712137203.546176734 secs.nsecs elapsed_time: 40.224022733 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 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-ffff8800b6077000.rpc_stats= snapshot_time: 1712137243.770361180 secs.nsecs start_time: 1712137203.546236072 secs.nsecs elapsed_time: 40.224125108 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: 1 0 0 | 2 1 1 2: 3 0 0 | 1 0 2 4: 2 0 0 | 0 0 2 8: 1 0 0 | 0 0 2 16: 5002 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: 5009 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: 4 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 107 2 4 | 2 1 6 1024: 204 4 8 | 4 3 10 2048: 428 8 16 | 8 7 18 4096: 853 17 33 | 16 15 33 8192: 1680 33 67 | 32 31 65 16384: 1629 32 100 | 36 34 100 llite.lustre-ffff8800b6077000.read_ahead_stats= snapshot_time 1712137243.775107544 secs.nsecs start_time 1712137203.550015369 secs.nsecs elapsed_time 40.225092175 secs.nsecs hits 75026 samples [pages] misses 5009 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75027 samples [pages] failed_to_fast_read 5009 samples [pages] readahead_pages 5008 samples [pages] 1 15 75026