== sanity test 101a: check read-ahead for random reads === 18:06:28 (1748469988) nreads: 10000 file size: 96MB 46.529779s, 14.0847MB/s osc.lustre-OST0000-osc-ffff8800b5db7800.rpc_stats= snapshot_time: 1748470038.706864401 secs.nsecs start_time: 1748469989.228078155 secs.nsecs elapsed_time: 49.478786246 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-ffff8800b5db7800.rpc_stats= snapshot_time: 1748470038.706934614 secs.nsecs start_time: 1748469989.228118955 secs.nsecs elapsed_time: 49.478815659 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: 1 0 0 | 2 1 1 2: 2 0 0 | 1 0 2 4: 5 0 0 | 0 0 2 8: 6 0 0 | 0 0 2 16: 5051 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: 5065 100 100 | 100 97 97 2: 0 0 100 | 2 1 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: 5 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 15 0 0 | 0 0 3 128: 25 0 1 | 0 0 3 256: 55 1 2 | 1 0 4 512: 107 2 4 | 2 1 6 1024: 208 4 8 | 4 3 10 2048: 433 8 16 | 8 7 18 4096: 865 17 33 | 16 15 33 8192: 1678 33 67 | 32 31 65 16384: 1665 32 100 | 36 34 100 llite.lustre-ffff8800b5db7800.read_ahead_stats= snapshot_time 1748470038.712651173 secs.nsecs start_time 1748469989.233783803 secs.nsecs elapsed_time 49.478867370 secs.nsecs hits 75771 samples [pages] misses 5065 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75771 samples [pages] failed_to_fast_read 5065 samples [pages] readahead_pages 5064 samples [pages] 1 15 75771