== sanity test 101a: check read-ahead for random reads === 17:54:54 (1776203694) nreads: 10000 file size: 96MB 61.306961s, 10.6898MB/s osc.lustre-OST0000-osc-ffff9a4011397800.rpc_stats= snapshot_time: 1776203760.950336764 secs.nsecs start_time: 1776203696.154485060 secs.nsecs elapsed_time: 64.795851704 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-ffff9a4011397800.rpc_stats= snapshot_time: 1776203760.952848376 secs.nsecs start_time: 1776203696.154511833 secs.nsecs elapsed_time: 64.798336543 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: 4 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 5081 99 100 | 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: 5081 99 99 | 40 39 39 2: 4 0 100 | 41 40 79 3: 0 0 100 | 11 10 90 4: 0 0 100 | 4 3 94 5: 0 0 100 | 3 2 97 6: 0 0 100 | 3 2 100 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: 868 17 33 | 16 15 33 8192: 1690 33 67 | 32 31 64 16384: 1671 32 100 | 36 35 100 llite.lustre-ffff9a4011397800.read_ahead_stats= snapshot_time 1776203760.966086362 secs.nsecs start_time 1776203696.189628167 secs.nsecs elapsed_time 64.776458195 secs.nsecs hits 76209 samples [pages] misses 5085 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76209 samples [pages] failed_to_fast_read 5085 samples [pages]