== sanity test 101a: check read-ahead for random reads === 22:19:25 (1787192365) nreads: 10000 file size: 96MB 180.443776s, 3.34755MB/s osc.lustre-OST0000-osc-ffff8f7983e8f000.rpc_stats= snapshot_time: 1787192565.074387708 secs.nsecs start_time: 1787192366.966084188 secs.nsecs elapsed_time: 198.108303520 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: 1 0 0 | 0 0 3 4: 2 0 0 | 0 0 3 8: 6 0 0 | 0 0 3 16: 6052 99 100 | 0 0 3 32: 0 0 100 | 0 0 3 64: 0 0 100 | 0 0 3 128: 0 0 100 | 0 0 3 256: 0 0 100 | 0 0 3 512: 0 0 100 | 0 0 3 1024: 0 0 100 | 25 96 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 6061 100 100 | 26 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 6 0 0 | 2 7 7 1: 0 0 0 | 0 0 7 2: 0 0 0 | 0 0 7 4: 0 0 0 | 0 0 7 8: 0 0 0 | 0 0 7 16: 5 0 0 | 0 0 7 32: 8 0 0 | 0 0 7 64: 19 0 0 | 0 0 7 128: 29 0 1 | 0 0 7 256: 64 1 2 | 0 0 7 512: 126 2 4 | 0 0 7 1024: 230 3 8 | 1 3 11 2048: 518 8 16 | 2 7 19 4096: 996 16 33 | 4 15 34 8192: 1993 32 65 | 8 30 65 16384: 2067 34 100 | 9 34 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 0 0 0 | 0 0 0 4096: 515 8 8 | 0 0 0 8192: 3407 56 64 | 0 0 0 16384: 1884 31 95 | 1 3 3 32768: 361 5 101 | 6 23 26 65536: 37 0 102 | 17 65 92 131072: 0 0 102 | 2 7 100 262144: 0 0 102 | 0 0 100 524288: 0 0 102 | 0 0 100 1048576: 0 0 102 | 0 0 100 2097152: 0 0 102 | 0 0 100 4194304: 0 0 102 | 0 0 100 8388608: 0 0 102 | 0 0 100 16777216: 0 0 102 | 0 0 100 33554432: 0 0 102 | 0 0 100 67108864: 0 0 102 | 0 0 100 134217728: 0 0 102 | 0 0 100 268435456: 0 0 102 | 0 0 100 536870912: 0 0 102 | 0 0 100 1073741824: 0 0 102 | 0 0 100 osc.lustre-OST0001-osc-ffff8f7983e8f000.rpc_stats= snapshot_time: 1787192565.074531992 secs.nsecs start_time: 1787192366.966117638 secs.nsecs elapsed_time: 198.108414354 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 | 0 0 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 | 2 50 50 2: 0 0 0 | 1 25 75 3: 0 0 0 | 1 25 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 4 100 100 read write RPC latency (us) count % cum % | count % cum % 0: 0 0 0 | 0 0 0 1: 0 0 0 | 0 0 0 2: 0 0 0 | 0 0 0 4: 0 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 0 0 0 | 0 0 0 32: 0 0 0 | 0 0 0 64: 0 0 0 | 0 0 0 128: 0 0 0 | 0 0 0 256: 0 0 0 | 0 0 0 512: 0 0 0 | 0 0 0 1024: 0 0 0 | 0 0 0 2048: 0 0 0 | 0 0 0 4096: 0 0 0 | 0 0 0 8192: 0 0 0 | 1 25 25 16384: 0 0 0 | 0 0 25 32768: 0 0 0 | 3 75 100 llite.lustre-ffff8f7983e8f000.read_ahead_stats= snapshot_time 1787192565.102323285 secs.nsecs start_time 1787192366.979978346 secs.nsecs elapsed_time 198.122344939 secs.nsecs hits 90771 samples [pages] misses 6061 samples [pages] readpage_not_consecutive 9212 samples [pages] zero_size_window 90771 samples [pages] failed_to_fast_read 6061 samples [pages] readahead_pages 6061 samples [pages] 1 15 90771