== sanity test 101a: check read-ahead for random reads === 17:09:10 (1718399350) nreads: 10000 file size: 96MB 37.859481s, 17.3103MB/s osc.lustre-OST0000-osc-ffff8800a9200800.rpc_stats= snapshot_time: 1718399391.045443808 secs.nsecs start_time: 1718399351.604226840 secs.nsecs elapsed_time: 39.441216968 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 | 0 0 0 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 0 0 0 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 0 0 0 osc.lustre-OST0001-osc-ffff8800a9200800.rpc_stats= snapshot_time: 1718399391.046132795 secs.nsecs start_time: 1718399351.604278786 secs.nsecs elapsed_time: 39.441854009 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 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 1 0 0 | 0 0 0 16: 6602 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 25 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6601 99 99 | 19 76 76 2: 2 0 100 | 6 24 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 1 4 4 1: 0 0 0 | 0 0 4 2: 0 0 0 | 0 0 4 4: 0 0 0 | 0 0 4 8: 0 0 0 | 0 0 4 16: 5 0 0 | 0 0 4 32: 8 0 0 | 0 0 4 64: 19 0 0 | 0 0 4 128: 32 0 1 | 0 0 4 256: 72 1 2 | 0 0 4 512: 135 2 4 | 0 0 4 1024: 257 3 8 | 1 4 8 2048: 580 8 16 | 2 8 16 4096: 1106 16 33 | 4 16 32 8192: 2231 33 67 | 8 32 64 16384: 2152 32 100 | 9 36 100 llite.lustre-ffff8800a9200800.read_ahead_stats= snapshot_time 1718399391.064877495 secs.nsecs start_time 1718399351.609407072 secs.nsecs elapsed_time 39.455470423 secs.nsecs hits 99037 samples [pages] misses 6603 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 99037 samples [pages] failed_to_fast_read 6603 samples [pages]