== sanity test 101a: check read-ahead for random reads === 20:45:26 (1733795126) nreads: 10000 file size: 96MB 40.179716s, 16.3107MB/s osc.lustre-OST0000-osc-ffff88012d09e800.rpc_stats= snapshot_time: 1733795170.739137755 secs.nsecs start_time: 1733795127.249845665 secs.nsecs elapsed_time: 43.489292090 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 50 50 2: 0 0 0 | 1 25 75 4: 0 0 0 | 0 0 75 8: 0 0 0 | 1 25 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 50 50 2: 0 0 0 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff88012d09e800.rpc_stats= snapshot_time: 1733795170.739346988 secs.nsecs start_time: 1733795127.249931239 secs.nsecs elapsed_time: 43.489415749 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 1 1 2: 1 0 0 | 1 0 2 4: 0 0 0 | 0 0 2 8: 9 0 0 | 0 0 2 16: 4975 99 100 | 0 0 2 32: 0 0 100 | 0 0 2 64: 0 0 100 | 0 0 2 128: 0 0 100 | 0 0 2 256: 0 0 100 | 100 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 4985 100 100 | 101 98 98 2: 0 0 100 | 1 0 99 3: 0 0 100 | 1 0 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 4 3 3 1: 0 0 0 | 0 0 3 2: 0 0 0 | 0 0 3 4: 0 0 0 | 0 0 3 8: 0 0 0 | 0 0 3 16: 5 0 0 | 0 0 3 32: 7 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 26 0 1 | 0 0 3 256: 52 1 2 | 1 0 4 512: 107 2 4 | 2 1 6 1024: 205 4 8 | 4 3 10 2048: 429 8 17 | 8 7 18 4096: 857 17 34 | 16 15 33 8192: 1667 33 67 | 32 31 65 16384: 1611 32 100 | 36 34 100 llite.lustre-ffff88012d09e800.read_ahead_stats= snapshot_time 1733795170.744125025 secs.nsecs start_time 1733795127.256561682 secs.nsecs elapsed_time 43.487563343 secs.nsecs hits 74657 samples [pages] misses 4985 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74657 samples [pages] failed_to_fast_read 4985 samples [pages] readahead_pages 4985 samples [pages] 1 15 74657