== sanity test 101a: check read-ahead for random reads === 04:31:08 (1747211468) nreads: 10000 file size: 96MB 37.600498s, 17.4296MB/s osc.lustre-OST0000-osc-ffff88012d157000.rpc_stats= snapshot_time: 1747211517.968094519 secs.nsecs start_time: 1747211468.743352880 secs.nsecs elapsed_time: 49.224741639 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 | 1 3 3 2: 0 0 0 | 1 3 7 4: 4 0 0 | 0 0 7 8: 5 0 0 | 1 3 10 16: 6320 99 100 | 0 0 10 32: 0 0 100 | 0 0 10 64: 0 0 100 | 0 0 10 128: 0 0 100 | 0 0 10 256: 0 0 100 | 0 0 10 512: 0 0 100 | 0 0 10 1024: 0 0 100 | 25 89 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6329 100 100 | 26 92 92 2: 0 0 100 | 1 3 96 3: 0 0 100 | 1 3 100 read write offset rpcs % cum % | rpcs % cum % 0: 4 0 0 | 4 14 14 1: 0 0 0 | 0 0 14 2: 0 0 0 | 0 0 14 4: 0 0 0 | 0 0 14 8: 0 0 0 | 0 0 14 16: 5 0 0 | 0 0 14 32: 7 0 0 | 0 0 14 64: 23 0 0 | 0 0 14 128: 34 0 1 | 0 0 14 256: 74 1 2 | 0 0 14 512: 142 2 4 | 0 0 14 1024: 271 4 8 | 1 3 17 2048: 577 9 17 | 2 7 25 4096: 1145 18 36 | 4 14 39 8192: 2200 34 70 | 8 28 67 16384: 1847 29 100 | 9 32 100 osc.lustre-OST0001-osc-ffff88012d157000.rpc_stats= snapshot_time: 1747211517.968164903 secs.nsecs start_time: 1747211468.743370335 secs.nsecs elapsed_time: 49.224794568 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 | 3 75 75 2: 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 | 1 25 75 4: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 llite.lustre-ffff88012d157000.read_ahead_stats= snapshot_time 1747211517.971898287 secs.nsecs start_time 1747211468.747148197 secs.nsecs elapsed_time 49.224750090 secs.nsecs hits 94783 samples [pages] misses 6329 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 94783 samples [pages] failed_to_fast_read 6329 samples [pages] readahead_pages 6329 samples [pages] 2 15 94783