== sanity test 101a: check read-ahead for random reads === 05:27:05 (1781256425) nreads: 10000 file size: 96MB 68.176223s, 9.61274MB/s osc.lustre-OST0000-osc-ffff9b8a10b13000.rpc_stats= snapshot_time: 1781256498.405505792 secs.nsecs start_time: 1781256427.095475830 secs.nsecs elapsed_time: 71.310029962 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 66 66 2: 0 0 0 | 0 0 66 4: 0 0 0 | 0 0 66 8: 0 0 0 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 66 66 2: 0 0 0 | 1 33 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 osc.lustre-OST0001-osc-ffff9b8a10b13000.rpc_stats= snapshot_time: 1781256498.405669672 secs.nsecs start_time: 1781256427.095540298 secs.nsecs elapsed_time: 71.310129374 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 1 1 2: 3 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5084 99 100 | 0 0 1 32: 0 0 100 | 0 0 1 64: 0 0 100 | 0 0 1 128: 0 0 100 | 0 0 1 256: 0 0 100 | 100 98 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5085 99 99 | 59 57 57 2: 2 0 100 | 30 29 87 3: 0 0 100 | 6 5 93 4: 0 0 100 | 3 2 96 5: 0 0 100 | 2 1 98 6: 0 0 100 | 2 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 3 2 2 1: 0 0 0 | 0 0 2 2: 0 0 0 | 0 0 2 4: 0 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 4 0 0 | 0 0 2 32: 6 0 0 | 0 0 2 64: 16 0 0 | 0 0 2 128: 27 0 1 | 0 0 2 256: 53 1 2 | 1 0 3 512: 109 2 4 | 2 1 5 1024: 205 4 8 | 4 3 9 2048: 434 8 16 | 8 7 17 4096: 865 17 33 | 16 15 33 8192: 1686 33 66 | 32 31 64 16384: 1679 33 100 | 36 35 100 llite.lustre-ffff9b8a10b13000.read_ahead_stats= snapshot_time 1781256498.415790072 secs.nsecs start_time 1781256427.122032102 secs.nsecs elapsed_time 71.293757970 secs.nsecs hits 76255 samples [pages] misses 5087 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76255 samples [pages] failed_to_fast_read 5087 samples [pages]