== sanity test 101a: check read-ahead for random reads === 09:14:04 (1782220444) nreads: 10000 file size: 96MB 180.768591s, 2.76764MB/s osc.lustre-OST0000-osc-ffff9fb71b77b000.rpc_stats= snapshot_time: 1782220653.131737749 secs.nsecs start_time: 1782220446.581910428 secs.nsecs elapsed_time: 206.549827321 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 50 50 2: 0 0 0 | 0 0 50 4: 0 0 0 | 0 0 50 8: 0 0 0 | 1 50 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 0 0 0 | 2 100 100 read write offset rpcs % cum % | rpcs % cum % 0: 0 0 0 | 2 100 100 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 | 0 0 0 16384: 0 0 0 | 1 50 50 32768: 0 0 0 | 1 50 100 osc.lustre-OST0001-osc-ffff9fb71b77b000.rpc_stats= snapshot_time: 1782220653.131862838 secs.nsecs start_time: 1782220446.581945498 secs.nsecs elapsed_time: 206.549917340 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 0 0 2: 0 0 0 | 0 0 0 4: 1 0 0 | 0 0 0 8: 0 0 0 | 0 0 0 16: 3883 99 100 | 0 0 0 32: 0 0 100 | 0 0 0 64: 0 0 100 | 0 0 0 128: 0 0 100 | 0 0 0 256: 0 0 100 | 100 99 100 read write rpcs in flight rpcs % cum % | rpcs % cum % 1: 3883 99 99 | 99 98 98 2: 1 0 100 | 2 1 100 read write offset rpcs % cum % | rpcs % cum % 0: 3 0 0 | 2 1 1 1: 0 0 0 | 0 0 1 2: 0 0 0 | 0 0 1 4: 0 0 0 | 0 0 1 8: 0 0 0 | 0 0 1 16: 3 0 0 | 0 0 1 32: 6 0 0 | 0 0 1 64: 12 0 0 | 0 0 1 128: 19 0 1 | 0 0 1 256: 42 1 2 | 1 0 2 512: 87 2 4 | 2 1 4 1024: 150 3 8 | 4 3 8 2048: 338 8 16 | 8 7 16 4096: 658 16 33 | 16 15 32 8192: 1293 33 67 | 32 31 64 16384: 1273 32 100 | 36 35 100 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: 47 1 1 | 0 0 0 8192: 1230 31 32 | 0 0 0 16384: 1845 47 80 | 15 14 14 32768: 774 19 100 | 76 75 90 65536: 78 2 102 | 11 10 100 131072: 1 0 102 | 0 0 100 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 llite.lustre-ffff9fb71b77b000.read_ahead_stats= snapshot_time 1782220653.149425964 secs.nsecs start_time 1782220446.612147105 secs.nsecs elapsed_time 206.537278859 secs.nsecs hits 58226 samples [pages] misses 3884 samples [pages] readpage_not_consecutive 7630 samples [pages] zero_size_window 58226 samples [pages] failed_to_fast_read 3884 samples [pages] readahead_pages 3884 samples [pages] 2 15 58226