== sanity test 101a: check read-ahead for random reads === 12:55:12 (1721408112) nreads: 10000 file size: 96MB 29.715357s, 22.0546MB/s osc.lustre-OST0000-osc-ffff8800a9a8f800.rpc_stats= snapshot_time: 1721408144.125747454 secs.nsecs start_time: 1721408112.967848125 secs.nsecs elapsed_time: 31.157899329 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 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 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff8800a9a8f800.rpc_stats= snapshot_time: 1721408144.126599837 secs.nsecs start_time: 1721408112.967925433 secs.nsecs elapsed_time: 31.158674404 secs.nsecs read RPCs in flight: 0 write RPCs in flight: 0 pending write pages: 192 pending read pages: 0 read write pages per rpc rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 1 1 2: 0 0 0 | 1 0 2 4: 2 0 0 | 0 0 2 8: 0 0 0 | 0 0 2 16: 5077 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 | 99 97 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 5079 100 100 | 30 29 29 2: 0 0 100 | 50 49 78 3: 0 0 100 | 19 18 97 4: 0 0 100 | 3 2 100 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: 4 0 0 | 0 0 3 32: 6 0 0 | 0 0 3 64: 16 0 0 | 0 0 3 128: 27 0 1 | 0 0 3 256: 53 1 2 | 1 0 4 512: 109 2 4 | 2 1 6 1024: 207 4 8 | 4 3 10 2048: 433 8 16 | 8 7 18 4096: 867 17 33 | 16 15 34 8192: 1696 33 67 | 32 31 65 16384: 1658 32 100 | 35 34 100 llite.lustre-ffff8800a9a8f800.read_ahead_stats= snapshot_time 1721408144.131447392 secs.nsecs start_time 1721408112.980402513 secs.nsecs elapsed_time 31.151044879 secs.nsecs hits 76149 samples [pages] misses 5079 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 76149 samples [pages] failed_to_fast_read 5079 samples [pages]