== sanity test 101a: check read-ahead for random reads === 09:29:47 (1759843787) nreads: 10000 file size: 96MB 14.107673s, 46.4542MB/s osc.lustre-OST0000-osc-ffffa07a588a3800.rpc_stats= snapshot_time: 1759843803.304664597 secs.nsecs start_time: 1759843788.099408286 secs.nsecs elapsed_time: 15.205256311 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 2 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-ffffa07a588a3800.rpc_stats= snapshot_time: 1759843803.304747152 secs.nsecs start_time: 1759843788.099448276 secs.nsecs elapsed_time: 15.205298876 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 967 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: 6581 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 | 0 0 0 512: 0 0 100 | 0 0 0 1024: 0 0 100 | 24 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6581 100 100 | 24 100 100 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: 74 1 2 | 0 0 4 512: 137 2 4 | 0 0 4 1024: 259 3 8 | 1 4 8 2048: 582 8 17 | 2 8 16 4096: 1112 16 33 | 4 16 33 8192: 2232 33 67 | 8 33 66 16384: 2115 32 100 | 8 33 100 llite.lustre-ffffa07a588a3800.read_ahead_stats= snapshot_time 1759843803.310231440 secs.nsecs start_time 1759843788.106126532 secs.nsecs elapsed_time 15.204104908 secs.nsecs hits 98714 samples [pages] misses 6581 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98714 samples [pages] failed_to_fast_read 6581 samples [pages]