== sanity test 101a: check read-ahead for random reads === 07:06:01 (1713438361) nreads: 10000 file size: 96MB 33.428902s, 19.6046MB/s osc.lustre-OST0000-osc-ffff8800a9f1d000.rpc_stats= snapshot_time: 1713438403.738562206 secs.nsecs start_time: 1713438362.234573426 secs.nsecs elapsed_time: 41.503988780 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-ffff8800a9f1d000.rpc_stats= snapshot_time: 1713438403.738720124 secs.nsecs start_time: 1713438362.234652888 secs.nsecs elapsed_time: 41.504067236 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: 2 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 5 0 0 | 1 3 10 16: 6437 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: 6445 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: 19 0 0 | 0 0 14 128: 32 0 1 | 0 0 14 256: 74 1 2 | 0 0 14 512: 137 2 4 | 0 0 14 1024: 259 4 8 | 1 3 17 2048: 574 8 17 | 2 7 25 4096: 1095 16 34 | 4 14 39 8192: 2199 34 68 | 8 28 67 16384: 2037 31 100 | 9 32 100 llite.lustre-ffff8800a9f1d000.read_ahead_stats= snapshot_time 1713438403.741903697 secs.nsecs start_time 1713438362.237918791 secs.nsecs elapsed_time 41.503984906 secs.nsecs hits 96553 samples [pages] misses 6445 samples [pages] readpage_not_consecutive 9991 samples [pages] zero_size_window 96554 samples [pages] failed_to_fast_read 6445 samples [pages] readahead_pages 6444 samples [pages] 1 15 96553