== sanity test 101a: check read-ahead for random reads === 08:50:54 (1724763054) nreads: 10000 file size: 96MB 39.658268s, 16.5252MB/s osc.lustre-OST0000-osc-ffff8800a95cd800.rpc_stats= snapshot_time: 1724763104.955452805 secs.nsecs start_time: 1724763055.099101361 secs.nsecs elapsed_time: 49.856351444 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 50 50 2: 0 0 0 | 2 50 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 1 25 75 4: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff8800a95cd800.rpc_stats= snapshot_time: 1724763104.955594822 secs.nsecs start_time: 1724763055.099163115 secs.nsecs elapsed_time: 49.856431707 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 7 7 2: 0 0 0 | 0 0 7 4: 3 0 0 | 0 0 7 8: 7 0 0 | 1 3 10 16: 6431 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6441 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 5 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 19 0 0 | 0 0 14 128: 31 0 1 | 0 0 14 256: 70 1 2 | 0 0 14 512: 134 2 4 | 0 0 14 1024: 253 3 8 | 1 3 17 2048: 561 8 16 | 2 7 25 4096: 1079 16 33 | 4 14 39 8192: 2160 33 67 | 8 28 67 16384: 2115 32 100 | 9 32 100 llite.lustre-ffff8800a95cd800.read_ahead_stats= snapshot_time 1724763104.959423580 secs.nsecs start_time 1724763055.103803737 secs.nsecs elapsed_time 49.855619843 secs.nsecs hits 96465 samples [pages] misses 6441 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 96465 samples [pages] failed_to_fast_read 6441 samples [pages] readahead_pages 6441 samples [pages] 2 15 96465