== sanity test 101a: check read-ahead for random reads === 00:34:25 (1715574865) nreads: 10000 file size: 96MB 55.233023s, 11.8654MB/s osc.lustre-OST0000-osc-ffff880078887000.rpc_stats= snapshot_time: 1715574928.427152630 secs.nsecs start_time: 1715574865.581850992 secs.nsecs elapsed_time: 62.845301638 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 | 2 50 100 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 osc.lustre-OST0001-osc-ffff880078887000.rpc_stats= snapshot_time: 1715574928.427346730 secs.nsecs start_time: 1715574865.581936279 secs.nsecs elapsed_time: 62.845410451 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 7 7 2: 1 0 0 | 0 0 7 4: 2 0 0 | 0 0 7 8: 3 0 0 | 1 3 10 16: 6339 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: 6345 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: 6 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: 8 0 0 | 0 0 14 64: 20 0 0 | 0 0 14 128: 34 0 1 | 0 0 14 256: 72 1 2 | 0 0 14 512: 135 2 4 | 0 0 14 1024: 260 4 8 | 1 3 17 2048: 568 8 17 | 2 7 25 4096: 1105 17 34 | 4 14 39 8192: 2175 34 69 | 8 28 67 16384: 1957 30 100 | 9 32 100 llite.lustre-ffff880078887000.read_ahead_stats= snapshot_time 1715574928.432736049 secs.nsecs start_time 1715574865.587120434 secs.nsecs elapsed_time 62.845615615 secs.nsecs hits 95090 samples [pages] misses 6345 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95090 samples [pages] failed_to_fast_read 6345 samples [pages] readahead_pages 6345 samples [pages] 1 15 95090