== sanity test 101a: check read-ahead for random reads === 09:19:27 (1761311967) nreads: 10000 file size: 96MB 56.090153s, 11.684MB/s osc.lustre-OST0000-osc-ffff8b4e48fad000.rpc_stats= snapshot_time: 1761312027.654798480 secs.nsecs start_time: 1761311968.899014782 secs.nsecs elapsed_time: 58.755783698 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 | 1 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 1 100 100 osc.lustre-OST0001-osc-ffff8b4e48fad000.rpc_stats= snapshot_time: 1761312027.655276773 secs.nsecs start_time: 1761311968.899038479 secs.nsecs elapsed_time: 58.756238294 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: 5083 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: 5080 99 99 | 45 45 45 2: 3 0 100 | 42 42 87 3: 0 0 100 | 8 8 95 4: 0 0 100 | 3 3 98 5: 0 0 100 | 1 1 99 6: 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: 867 17 33 | 16 16 32 8192: 1691 33 67 | 32 32 64 16384: 1669 32 100 | 36 36 100 llite.lustre-ffff8b4e48fad000.read_ahead_stats= snapshot_time 1761312027.668683634 secs.nsecs start_time 1761311968.924384603 secs.nsecs elapsed_time 58.744299031 secs.nsecs hits 76243 samples [pages] misses 5083 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76243 samples [pages] failed_to_fast_read 5083 samples [pages]