== sanity test 101a: check read-ahead for random reads === 17:15:04 (1755638104) nreads: 10000 file size: 96MB 58.489184s, 11.2048MB/s osc.lustre-OST0000-osc-ffff9f7f85632800.rpc_stats= snapshot_time: 1755638172.686483902 secs.nsecs start_time: 1755638104.752254611 secs.nsecs elapsed_time: 67.934229291 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 | 2 100 100 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-ffff9f7f85632800.rpc_stats= snapshot_time: 1755638172.686545872 secs.nsecs start_time: 1755638104.752277050 secs.nsecs elapsed_time: 67.934268822 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 6 6 2: 1 0 0 | 0 0 6 4: 4 0 0 | 0 0 6 8: 8 0 0 | 1 3 10 16: 6381 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 1 3 13 256: 0 0 100 | 1 3 16 512: 0 0 100 | 0 0 16 1024: 0 0 100 | 25 83 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6394 100 100 | 29 96 96 2: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 5 0 0 | 4 13 13 1: 0 0 0 | 0 0 13 2: 0 0 0 | 0 0 13 4: 0 0 0 | 0 0 13 8: 0 0 0 | 0 0 13 16: 5 0 0 | 0 0 13 32: 8 0 0 | 0 0 13 64: 20 0 0 | 0 0 13 128: 29 0 1 | 0 0 13 256: 72 1 2 | 0 0 13 512: 92 1 3 | 2 6 20 1024: 266 4 7 | 1 3 23 2048: 564 8 16 | 2 6 30 4096: 1090 17 33 | 4 13 43 8192: 2147 33 67 | 8 26 70 16384: 2096 32 100 | 9 30 100 llite.lustre-ffff9f7f85632800.read_ahead_stats= snapshot_time 1755638172.691447366 secs.nsecs start_time 1755638104.760783893 secs.nsecs elapsed_time 67.930663473 secs.nsecs hits 95723 samples [pages] misses 6394 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95723 samples [pages] failed_to_fast_read 6394 samples [pages] readahead_pages 6394 samples [pages] 1 15 95723