== sanity test 101a: check read-ahead for random reads === 10:02:17 (1746626537) nreads: 10000 file size: 96MB 36.642222s, 17.8854MB/s osc.lustre-OST0000-osc-ffff8800b66e5800.rpc_stats= snapshot_time: 1746626585.679130959 secs.nsecs start_time: 1746626537.957030508 secs.nsecs elapsed_time: 47.722100451 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO 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 | 1 33 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 1 33 33 2: 0 0 0 | 2 66 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 3 100 100 osc.lustre-OST0001-osc-ffff8800b66e5800.rpc_stats= snapshot_time: 1746626585.679194999 secs.nsecs start_time: 1746626537.957058103 secs.nsecs elapsed_time: 47.722136896 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 DIO RPCs in flight: 0 pending write pages: 0 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 2 0 0 | 2 6 6 2: 1 0 0 | 1 3 10 4: 5 0 0 | 0 0 10 8: 4 0 0 | 1 3 13 16: 6320 99 100 | 0 0 13 32: 0 0 100 | 0 0 13 64: 0 0 100 | 0 0 13 128: 0 0 100 | 0 0 13 256: 0 0 100 | 0 0 13 512: 0 0 100 | 0 0 13 1024: 0 0 100 | 25 86 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6332 100 100 | 26 89 89 2: 0 0 100 | 1 3 93 3: 0 0 100 | 1 3 96 4: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 5 17 17 1: 0 0 0 | 0 0 17 2: 0 0 0 | 0 0 17 4: 0 0 0 | 0 0 17 8: 0 0 0 | 0 0 17 16: 5 0 0 | 0 0 17 32: 8 0 0 | 0 0 17 64: 23 0 0 | 0 0 17 128: 33 0 1 | 0 0 17 256: 71 1 2 | 0 0 17 512: 135 2 4 | 0 0 17 1024: 275 4 8 | 1 3 20 2048: 575 9 17 | 2 6 27 4096: 1139 17 35 | 4 13 41 8192: 2206 34 70 | 8 27 68 16384: 1857 29 100 | 9 31 100 llite.lustre-ffff8800b66e5800.read_ahead_stats= snapshot_time 1746626585.681837466 secs.nsecs start_time 1746626537.960825485 secs.nsecs elapsed_time 47.721011981 secs.nsecs hits 94808 samples [pages] misses 6332 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 94810 samples [pages] failed_to_fast_read 6332 samples [pages] readahead_pages 6330 samples [pages] 1 15 94808