== sanity test 101a: check read-ahead for random reads === 15:33:31 (1713468811) nreads: 10000 file size: 96MB 33.215647s, 19.7305MB/s osc.lustre-OST0000-osc-ffff8800a5651000.rpc_stats= snapshot_time: 1713468848.752131008 secs.nsecs start_time: 1713468811.716549335 secs.nsecs elapsed_time: 37.035581673 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 | 1 3 10 4: 1 0 0 | 0 0 10 8: 2 0 0 | 0 0 10 16: 6015 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: 6019 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: 8 0 0 | 0 0 14 64: 23 0 0 | 0 0 14 128: 36 0 1 | 0 0 14 256: 74 1 2 | 0 0 14 512: 149 2 4 | 0 0 14 1024: 284 4 9 | 1 3 17 2048: 603 10 19 | 2 7 25 4096: 1188 19 39 | 4 14 39 8192: 1967 32 72 | 8 28 67 16384: 1678 27 100 | 9 32 100 osc.lustre-OST0001-osc-ffff8800a5651000.rpc_stats= snapshot_time: 1713468848.752339268 secs.nsecs start_time: 1713468811.716597218 secs.nsecs elapsed_time: 37.035742050 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 | 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-ffff8800a5651000.read_ahead_stats= snapshot_time 1713468848.755635893 secs.nsecs start_time 1713468811.720251605 secs.nsecs elapsed_time 37.035384288 secs.nsecs hits 90186 samples [pages] misses 6019 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 90186 samples [pages] failed_to_fast_read 6019 samples [pages] readahead_pages 6019 samples [pages] 1 15 90186