== sanity test 101a: check read-ahead for random reads === 19:18:50 (1746141530) nreads: 10000 file size: 96MB 67.756482s, 9.67228MB/s osc.lustre-OST0000-osc-ffff8800829d3000.rpc_stats= snapshot_time: 1746141605.186526397 secs.nsecs start_time: 1746141531.674276634 secs.nsecs elapsed_time: 73.512249763 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 | 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-ffff8800829d3000.rpc_stats= snapshot_time: 1746141605.186625095 secs.nsecs start_time: 1746141531.675511155 secs.nsecs elapsed_time: 73.511113940 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: 1 0 0 | 1 0 2 4: 2 0 0 | 0 0 2 8: 5 0 0 | 0 0 2 16: 5030 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: 5036 99 99 | 98 95 95 2: 2 0 100 | 4 3 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: 208 4 8 | 4 3 10 2048: 430 8 16 | 8 7 18 4096: 857 17 33 | 16 15 33 8192: 1674 33 67 | 32 31 65 16384: 1654 32 100 | 36 34 100 llite.lustre-ffff8800829d3000.read_ahead_stats= snapshot_time 1746141605.190718354 secs.nsecs start_time 1746141531.682119212 secs.nsecs elapsed_time 73.508599142 secs.nsecs hits 75458 samples [pages] misses 5038 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 75458 samples [pages] failed_to_fast_read 5038 samples [pages] readahead_pages 5038 samples [pages] 1 15 75458