== sanity test 101a: check read-ahead for random reads === 15:17:36 (1713295056) nreads: 10000 file size: 96MB 32.411659s, 20.2199MB/s osc.lustre-OST0000-osc-ffff8800b009e000.rpc_stats= snapshot_time: 1713295097.351027284 secs.nsecs start_time: 1713295056.711658683 secs.nsecs elapsed_time: 40.639368601 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-ffff8800b009e000.rpc_stats= snapshot_time: 1713295097.351185959 secs.nsecs start_time: 1713295056.711713600 secs.nsecs elapsed_time: 40.639472359 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: 1 0 0 | 2 7 7 2: 0 0 0 | 0 0 7 4: 1 0 0 | 0 0 7 8: 5 0 0 | 1 3 10 16: 6348 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: 6355 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: 5 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: 6 0 0 | 0 0 14 32: 8 0 0 | 0 0 14 64: 21 0 0 | 0 0 14 128: 36 0 1 | 0 0 14 256: 75 1 2 | 0 0 14 512: 142 2 4 | 0 0 14 1024: 271 4 8 | 1 3 17 2048: 604 9 18 | 2 7 25 4096: 1162 18 36 | 4 14 39 8192: 2270 35 72 | 8 28 67 16384: 1755 27 100 | 9 32 100 llite.lustre-ffff8800b009e000.read_ahead_stats= snapshot_time 1713295097.354246777 secs.nsecs start_time 1713295056.715285921 secs.nsecs elapsed_time 40.638960856 secs.nsecs hits 95235 samples [pages] misses 6355 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 95236 samples [pages] failed_to_fast_read 6355 samples [pages] readahead_pages 6354 samples [pages] 2 15 95235