== sanity test 101a: check read-ahead for random reads === 14:10:16 (1772305816) nreads: 10000 file size: 96MB 14.397579s, 45.5188MB/s osc.lustre-OST0000-osc-ffff9cf298299000.rpc_stats= snapshot_time: 1772305832.967461828 secs.nsecs start_time: 1772305817.428951219 secs.nsecs elapsed_time: 15.538510609 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 962 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: 6584 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: 6584 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: 1113 16 33 | 4 16 33 8192: 2233 33 67 | 8 33 66 16384: 2116 32 100 | 8 33 100 osc.lustre-OST0001-osc-ffff9cf298299000.rpc_stats= snapshot_time: 1772305832.967593969 secs.nsecs start_time: 1772305817.428980059 secs.nsecs elapsed_time: 15.538613910 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 7 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 llite.lustre-ffff9cf298299000.read_ahead_stats= snapshot_time 1772305832.973691832 secs.nsecs start_time 1772305817.435217124 secs.nsecs elapsed_time 15.538474708 secs.nsecs hits 98758 samples [pages] misses 6584 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 98758 samples [pages] failed_to_fast_read 6584 samples [pages]