== sanity test 101a: check read-ahead for random reads === 21:17:08 (1708827428) nreads: 10000 file size: 96MB 25.736479s, 25.4642MB/s osc.lustre-OST0000-osc-ffff8800912b4000.rpc_stats= snapshot_time: 1708827457.153940687 secs.nsecs start_time: 1708827428.603070339 secs.nsecs elapsed_time: 28.550870348 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 | 1 25 25 2: 0 0 0 | 1 25 50 3: 0 0 0 | 2 50 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 osc.lustre-OST0001-osc-ffff8800912b4000.rpc_stats= snapshot_time: 1708827457.154054549 secs.nsecs start_time: 1708827428.603118471 secs.nsecs elapsed_time: 28.550936078 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: 4 0 0 | 1 0 2 4: 4 0 0 | 0 0 2 8: 2 0 0 | 0 0 2 16: 4996 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: 5006 100 100 | 100 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: 4 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: 108 2 4 | 2 1 6 1024: 203 4 8 | 4 3 10 2048: 429 8 16 | 8 7 18 4096: 854 17 33 | 16 15 34 8192: 1677 33 67 | 32 31 65 16384: 1627 32 100 | 35 34 100 llite.lustre-ffff8800912b4000.read_ahead_stats= snapshot_time 1708827457.156964750 secs.nsecs start_time 1708827428.606857508 secs.nsecs elapsed_time 28.550107242 secs.nsecs hits 74938 samples [pages] misses 5006 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 74938 samples [pages] failed_to_fast_read 5006 samples [pages] readahead_pages 5006 samples [pages] 1 15 74938