== sanity test 101a: check read-ahead for random reads === 17:11:09 (1718399469) nreads: 10000 file size: 96MB 27.152568s, 24.1362MB/s osc.lustre-OST0000-osc-ffff8800781bc000.rpc_stats= snapshot_time: 1718399499.206412099 secs.nsecs start_time: 1718399470.757623143 secs.nsecs elapsed_time: 28.448788956 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-ffff8800781bc000.rpc_stats= snapshot_time: 1718399499.206574459 secs.nsecs start_time: 1718399470.757687578 secs.nsecs elapsed_time: 28.448886881 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: 0 0 0 | 1 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 5078 100 100 | 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: 5077 99 99 | 16 15 15 2: 1 0 100 | 55 53 69 3: 0 0 100 | 20 19 89 4: 0 0 100 | 8 7 97 5: 0 0 100 | 2 1 99 6: 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: 27 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 207 4 8 | 4 3 10 2048: 434 8 16 | 8 7 18 4096: 866 17 33 | 16 15 34 8192: 1696 33 67 | 32 31 65 16384: 1657 32 100 | 35 34 100 llite.lustre-ffff8800781bc000.read_ahead_stats= snapshot_time 1718399499.212216914 secs.nsecs start_time 1718399470.762812065 secs.nsecs elapsed_time 28.449404849 secs.nsecs hits 76166 samples [pages] misses 5078 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76166 samples [pages] failed_to_fast_read 5078 samples [pages]