== sanity test 101a: check read-ahead for random reads === 18:46:54 (1745621214) nreads: 10000 file size: 96MB 102.085284s, 6.41973MB/s osc.lustre-OST0000-osc-ffff88012a435000.rpc_stats= snapshot_time: 1745621328.777140247 secs.nsecs start_time: 1745621215.614079081 secs.nsecs elapsed_time: 113.163061166 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-ffff88012a435000.rpc_stats= snapshot_time: 1745621328.777262460 secs.nsecs start_time: 1745621215.614099056 secs.nsecs elapsed_time: 113.163163404 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: 0 0 0 | 1 0 2 4: 3 0 0 | 0 0 2 8: 11 0 0 | 0 0 2 16: 5042 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: 5049 99 99 | 97 94 94 2: 7 0 100 | 5 4 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: 108 2 4 | 2 1 6 1024: 209 4 8 | 4 3 10 2048: 429 8 16 | 8 7 18 4096: 853 16 33 | 16 15 33 8192: 1677 33 66 | 32 31 65 16384: 1672 33 100 | 36 34 100 llite.lustre-ffff88012a435000.read_ahead_stats= snapshot_time 1745621328.792909606 secs.nsecs start_time 1745621215.626470026 secs.nsecs elapsed_time 113.166439580 secs.nsecs hits 75631 samples [pages] misses 5056 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75631 samples [pages] failed_to_fast_read 5056 samples [pages] readahead_pages 5056 samples [pages] 3 15 75631