== sanity test 101a: check read-ahead for random reads === 04:57:30 (1715331450) nreads: 10000 file size: 96MB 45.953733s, 14.2613MB/s osc.lustre-OST0000-osc-ffff8800b6f32000.rpc_stats= snapshot_time: 1715331501.457918395 secs.nsecs start_time: 1715331451.372234058 secs.nsecs elapsed_time: 50.085684337 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 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff8800b6f32000.rpc_stats= snapshot_time: 1715331501.458034047 secs.nsecs start_time: 1715331451.372279782 secs.nsecs elapsed_time: 50.085754265 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 1 1 2: 0 0 0 | 1 0 2 4: 4 0 0 | 0 0 2 8: 10 0 0 | 0 0 2 16: 5007 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: 5020 99 99 | 93 90 90 2: 1 0 100 | 5 4 95 3: 0 0 100 | 4 3 99 4: 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: 108 2 4 | 2 1 6 1024: 204 4 8 | 4 3 10 2048: 428 8 16 | 8 7 18 4096: 856 17 33 | 16 15 33 8192: 1677 33 67 | 32 31 65 16384: 1640 32 100 | 36 34 100 llite.lustre-ffff8800b6f32000.read_ahead_stats= snapshot_time 1715331501.461950206 secs.nsecs start_time 1715331451.376172520 secs.nsecs elapsed_time 50.085777686 secs.nsecs hits 75120 samples [pages] misses 5021 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75120 samples [pages] failed_to_fast_read 5021 samples [pages] readahead_pages 5021 samples [pages] 2 15 75120