== sanity test 101a: check read-ahead for random reads === 20:26:23 (1780964783) nreads: 10000 file size: 96MB 60.721288s, 10.7929MB/s osc.lustre-OST0000-osc-ffff8ec647225000.rpc_stats= snapshot_time: 1780964849.552683546 secs.nsecs start_time: 1780964785.280114625 secs.nsecs elapsed_time: 64.272568921 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-ffff8ec647225000.rpc_stats= snapshot_time: 1780964849.552862361 secs.nsecs start_time: 1780964785.280141193 secs.nsecs elapsed_time: 64.272721168 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: 0 0 0 | 0 0 0 16: 5082 100 100 | 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 | 100 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5078 99 99 | 77 77 77 2: 4 0 100 | 20 20 97 3: 0 0 100 | 2 2 99 4: 0 0 100 | 1 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 1 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 4 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 16 0 0 | 0 0 1 128: 27 0 1 | 0 0 1 256: 53 1 2 | 1 1 2 512: 109 2 4 | 2 2 4 1024: 205 4 8 | 4 4 8 2048: 433 8 16 | 8 8 16 4096: 866 17 33 | 16 16 32 8192: 1690 33 67 | 32 32 64 16384: 1670 32 100 | 36 36 100 llite.lustre-ffff8ec647225000.read_ahead_stats= snapshot_time 1780964849.571296381 secs.nsecs start_time 1780964785.305145705 secs.nsecs elapsed_time 64.266150676 secs.nsecs hits 76228 samples [pages] misses 5082 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76228 samples [pages] failed_to_fast_read 5082 samples [pages]