== sanity test 101a: check read-ahead for random reads === 10:13:47 (1761228827) nreads: 10000 file size: 96MB 59.985644s, 10.9253MB/s osc.lustre-OST0000-osc-ffff8fddd831f000.rpc_stats= snapshot_time: 1761228891.231329324 secs.nsecs start_time: 1761228828.899553598 secs.nsecs elapsed_time: 62.331775726 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-ffff8fddd831f000.rpc_stats= snapshot_time: 1761228891.233745515 secs.nsecs start_time: 1761228828.899588538 secs.nsecs elapsed_time: 62.334156977 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: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5078 100 100 | 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: 5067 99 99 | 31 30 30 2: 11 0 100 | 47 46 76 3: 0 0 100 | 15 14 91 4: 0 0 100 | 4 3 95 5: 0 0 100 | 3 2 98 6: 0 0 100 | 1 0 99 7: 0 0 100 | 1 0 100 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: 433 8 16 | 8 7 17 4096: 865 17 33 | 16 15 33 8192: 1688 33 67 | 32 31 64 16384: 1669 32 100 | 36 35 100 llite.lustre-ffff8fddd831f000.read_ahead_stats= snapshot_time 1761228891.245790903 secs.nsecs start_time 1761228828.911970138 secs.nsecs elapsed_time 62.333820765 secs.nsecs hits 76168 samples [pages] misses 5078 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76168 samples [pages] failed_to_fast_read 5078 samples [pages]