== sanity test 101a: check read-ahead for random reads === 15:17:16 (1713295036) nreads: 10000 file size: 96MB 27.325637s, 23.9833MB/s osc.lustre-OST0000-osc-ffff8800b6220000.rpc_stats= snapshot_time: 1713295067.150694287 secs.nsecs start_time: 1713295036.583554562 secs.nsecs elapsed_time: 30.567139725 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 | 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-ffff8800b6220000.rpc_stats= snapshot_time: 1713295067.150825631 secs.nsecs start_time: 1713295036.583630290 secs.nsecs elapsed_time: 30.567195341 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 192 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: 1 0 0 | 0 0 2 8: 5 0 0 | 0 0 2 16: 4989 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 | 99 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4996 100 100 | 98 96 96 2: 0 0 100 | 2 1 98 3: 0 0 100 | 2 1 100 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: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 52 1 2 | 1 0 4 512: 108 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 428 8 17 | 8 7 18 4096: 859 17 34 | 16 15 34 8192: 1670 33 67 | 32 31 65 16384: 1617 32 100 | 35 34 100 llite.lustre-ffff8800b6220000.read_ahead_stats= snapshot_time 1713295067.153628002 secs.nsecs start_time 1713295036.587808267 secs.nsecs elapsed_time 30.565819735 secs.nsecs hits 74848 samples [pages] misses 4996 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74848 samples [pages] failed_to_fast_read 4996 samples [pages] readahead_pages 4996 samples [pages] 1 15 74848