== sanity test 101a: check read-ahead for random reads === 14:18:04 (1776190684) nreads: 10000 file size: 96MB 81.844047s, 8.00742MB/s osc.lustre-OST0000-osc-ffff93a6c347d800.rpc_stats= snapshot_time: 1776190770.627107985 secs.nsecs start_time: 1776190685.836717481 secs.nsecs elapsed_time: 84.790390504 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 | 2 100 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 osc.lustre-OST0001-osc-ffff93a6c347d800.rpc_stats= snapshot_time: 1776190770.627441608 secs.nsecs start_time: 1776190685.836749218 secs.nsecs elapsed_time: 84.790692390 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: 0 0 0 | 0 0 7 8: 0 0 0 | 1 3 10 16: 6609 100 100 | 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: 6600 99 99 | 26 92 92 2: 9 0 100 | 2 7 100 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: 32 0 1 | 0 0 14 256: 69 1 2 | 0 0 14 512: 135 2 4 | 0 0 14 1024: 255 3 8 | 1 3 17 2048: 570 8 16 | 2 7 25 4096: 1093 16 33 | 4 14 39 8192: 2215 33 66 | 8 28 67 16384: 2202 33 100 | 9 32 100 llite.lustre-ffff93a6c347d800.read_ahead_stats= snapshot_time 1776190770.636146353 secs.nsecs start_time 1776190685.857418800 secs.nsecs elapsed_time 84.778727553 secs.nsecs hits 99127 samples [pages] misses 6609 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 99127 samples [pages] failed_to_fast_read 6609 samples [pages]