[tun] add a fasttun splice / testing harness

[dpeckett]

Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.01 sec 698 MBytes 585 Mbits/sec 329 sender [ 5] 0.00-10.01 sec 697 MBytes 584 Mbits/sec receiver [ 7] 0.00-10.01 sec 1.06 GBytes 911 Mbits/sec 138 sender [ 7] 0.00-10.01 sec 1.06 GBytes 910 Mbits/sec receiver [ 9] 0.00-10.01 sec 1.06 GBytes 906 Mbits/sec 162 sender [ 9] 0.00-10.01 sec 1.05 GBytes 905 Mbits/sec receiver [ 11] 0.00-10.01 sec 688 MBytes 577 Mbits/sec 278 sender [ 11] 0.00-10.01 sec 688 MBytes 576 Mbits/sec receiver [ 13] 0.00-10.01 sec 736 MBytes 617 Mbits/sec 221 sender [ 13] 0.00-10.01 sec 736 MBytes 616 Mbits/sec receiver [ 15] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec 155 sender [ 15] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec receiver [ 17] 0.00-10.01 sec 704 MBytes 590 Mbits/sec 243 sender [ 17] 0.00-10.01 sec 704 MBytes 590 Mbits/sec receiver [ 19] 0.00-10.01 sec 653 MBytes 547 Mbits/sec 251 sender [ 19] 0.00-10.01 sec 652 MBytes 546 Mbits/sec receiver [ 21] 0.00-10.01 sec 2.28 GBytes 1.96 Gbits/sec 155 sender [ 21] 0.00-10.01 sec 2.28 GBytes 1.96 Gbits/sec receiver [ 23] 0.00-10.01 sec 1018 MBytes 854 Mbits/sec 181 sender [ 23] 0.00-10.01 sec 1018 MBytes 853 Mbits/sec receiver [ 25] 0.00-10.01 sec 1.19 GBytes 1.02 Gbits/sec 160 sender [ 25] 0.00-10.01 sec 1.18 GBytes 1.02 Gbits/sec receiver [ 27] 0.00-10.01 sec 2.31 GBytes 1.99 Gbits/sec 105 sender [ 27] 0.00-10.01 sec 2.31 GBytes 1.99 Gbits/sec receiver [ 29] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec 147 sender [ 29] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec receiver [ 31] 0.00-10.01 sec 2.36 GBytes 2.03 Gbits/sec 186 sender [ 31] 0.00-10.01 sec 2.36 GBytes 2.03 Gbits/sec receiver [ 33] 0.00-10.01 sec 653 MBytes 548 Mbits/sec 192 sender [ 33] 0.00-10.01 sec 653 MBytes 547 Mbits/sec receiver [ 35] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec 75 sender [ 35] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec receiver [ 37] 0.00-10.01 sec 1.09 GBytes 934 Mbits/sec 153 sender [ 37] 0.00-10.01 sec 1.09 GBytes 934 Mbits/sec receiver [ 39] 0.00-10.01 sec 1.03 GBytes 883 Mbits/sec 248 sender [ 39] 0.00-10.01 sec 1.03 GBytes 882 Mbits/sec receiver [ 41] 0.00-10.01 sec 490 MBytes 411 Mbits/sec 304 sender [ 41] 0.00-10.01 sec 490 MBytes 410 Mbits/sec receiver [ 43] 0.00-10.01 sec 1.01 GBytes 866 Mbits/sec 181 sender [ 43] 0.00-10.01 sec 1.01 GBytes 865 Mbits/sec receiver [ 45] 0.00-10.01 sec 697 MBytes 584 Mbits/sec 187 sender [ 45] 0.00-10.01 sec 697 MBytes 584 Mbits/sec receiver [ 47] 0.00-10.01 sec 2.34 GBytes 2.00 Gbits/sec 170 sender [ 47] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec receiver [ 49] 0.00-10.01 sec 717 MBytes 601 Mbits/sec 247 sender [ 49] 0.00-10.01 sec 716 MBytes 601 Mbits/sec receiver [ 51] 0.00-10.01 sec 1.07 GBytes 923 Mbits/sec 142 sender [ 51] 0.00-10.01 sec 1.07 GBytes 922 Mbits/sec receiver [ 53] 0.00-10.01 sec 567 MBytes 475 Mbits/sec 270 sender [ 53] 0.00-10.01 sec 566 MBytes 474 Mbits/sec receiver [ 55] 0.00-10.01 sec 596 MBytes 500 Mbits/sec 324 sender [ 55] 0.00-10.01 sec 596 MBytes 499 Mbits/sec receiver [ 57] 0.00-10.01 sec 654 MBytes 548 Mbits/sec 248 sender [ 57] 0.00-10.01 sec 654 MBytes 548 Mbits/sec receiver [ 59] 0.00-10.01 sec 462 MBytes 388 Mbits/sec 420 sender [ 59] 0.00-10.01 sec 462 MBytes 387 Mbits/sec receiver [ 61] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec 114 sender [ 61] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec receiver [ 63] 0.00-10.01 sec 771 MBytes 646 Mbits/sec 281 sender [ 63] 0.00-10.01 sec 770 MBytes 646 Mbits/sec receiver [ 65] 0.00-10.01 sec 2.37 GBytes 2.03 Gbits/sec 120 sender [ 65] 0.00-10.01 sec 2.36 GBytes 2.03 Gbits/sec receiver [ 67] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec 156 sender [ 67] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec receiver [ 69] 0.00-10.01 sec 724 MBytes 607 Mbits/sec 252 sender [ 69] 0.00-10.01 sec 724 MBytes 606 Mbits/sec receiver [ 71] 0.00-10.01 sec 1.05 GBytes 898 Mbits/sec 201 sender [ 71] 0.00-10.01 sec 1.05 GBytes 898 Mbits/sec receiver [ 73] 0.00-10.01 sec 682 MBytes 571 Mbits/sec 319 sender [ 73] 0.00-10.01 sec 681 MBytes 571 Mbits/sec receiver [ 75] 0.00-10.01 sec 653 MBytes 547 Mbits/sec 278 sender [ 75] 0.00-10.01 sec 653 MBytes 547 Mbits/sec receiver [ 77] 0.00-10.01 sec 1.07 GBytes 918 Mbits/sec 186 sender [ 77] 0.00-10.01 sec 1.07 GBytes 918 Mbits/sec receiver [ 79] 0.00-10.01 sec 740 MBytes 621 Mbits/sec 248 sender [ 79] 0.00-10.01 sec 740 MBytes 620 Mbits/sec receiver [ 81] 0.00-10.01 sec 2.31 GBytes 1.98 Gbits/sec 108 sender [ 81] 0.00-10.01 sec 2.31 GBytes 1.98 Gbits/sec receiver [ 83] 0.00-10.01 sec 995 MBytes 834 Mbits/sec 170 sender [ 83] 0.00-10.01 sec 995 MBytes 834 Mbits/sec receiver [ 85] 0.00-10.01 sec 696 MBytes 584 Mbits/sec 270 sender [ 85] 0.00-10.01 sec 696 MBytes 583 Mbits/sec receiver [ 87] 0.00-10.01 sec 729 MBytes 611 Mbits/sec 310 sender [ 87] 0.00-10.01 sec 728 MBytes 611 Mbits/sec receiver [ 89] 0.00-10.01 sec 2.32 GBytes 1.99 Gbits/sec 111 sender [ 89] 0.00-10.01 sec 2.31 GBytes 1.99 Gbits/sec receiver [ 91] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec 170 sender [ 91] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec receiver [ 93] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec 104 sender [ 93] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec receiver [ 95] 0.00-10.01 sec 714 MBytes 598 Mbits/sec 188 sender [ 95] 0.00-10.01 sec 713 MBytes 598 Mbits/sec receiver [ 97] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec 175 sender [ 97] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec receiver [ 99] 0.00-10.01 sec 1.09 GBytes 935 Mbits/sec 193 sender [ 99] 0.00-10.01 sec 1.09 GBytes 934 Mbits/sec receiver [101] 0.00-10.01 sec 1.01 GBytes 866 Mbits/sec 202 sender [101] 0.00-10.01 sec 1.01 GBytes 865 Mbits/sec receiver [103] 0.00-10.01 sec 1.04 GBytes 891 Mbits/sec 208 sender [103] 0.00-10.01 sec 1.04 GBytes 890 Mbits/sec receiver [105] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec 194 sender [105] 0.00-10.01 sec 2.35 GBytes 2.02 Gbits/sec receiver [107] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec 184 sender [107] 0.00-10.01 sec 2.33 GBytes 2.00 Gbits/sec receiver [109] 0.00-10.01 sec 1.06 GBytes 914 Mbits/sec 160 sender [109] 0.00-10.01 sec 1.06 GBytes 913 Mbits/sec receiver [111] 0.00-10.01 sec 956 MBytes 801 Mbits/sec 198 sender [111] 0.00-10.01 sec 955 MBytes 801 Mbits/sec receiver [113] 0.00-10.01 sec 2.29 GBytes 1.97 Gbits/sec 94 sender [113] 0.00-10.01 sec 2.29 GBytes 1.97 Gbits/sec receiver [115] 0.00-10.01 sec 774 MBytes 649 Mbits/sec 249 sender [115] 0.00-10.01 sec 773 MBytes 648 Mbits/sec receiver [117] 0.00-10.01 sec 1.01 GBytes 868 Mbits/sec 226 sender [117] 0.00-10.01 sec 1.01 GBytes 867 Mbits/sec receiver [119] 0.00-10.01 sec 669 MBytes 561 Mbits/sec 212 sender [119] 0.00-10.01 sec 668 MBytes 560 Mbits/sec receiver [121] 0.00-10.01 sec 1.12 GBytes 958 Mbits/sec 262 sender [121] 0.00-10.01 sec 1.11 GBytes 956 Mbits/sec receiver [123] 0.00-10.01 sec 2.31 GBytes 1.98 Gbits/sec 142 sender [123] 0.00-10.01 sec 2.31 GBytes 1.98 Gbits/sec receiver [125] 0.00-10.01 sec 779 MBytes 653 Mbits/sec 242 sender [125] 0.00-10.01 sec 778 MBytes 652 Mbits/sec receiver [127] 0.00-10.01 sec 632 MBytes 530 Mbits/sec 277 sender [127] 0.00-10.01 sec 631 MBytes 529 Mbits/sec receiver [129] 0.00-10.01 sec 2.34 GBytes 2.01 Gbits/sec 114 sender [129] 0.00-10.01 sec 2.34 GBytes 2.01 Gbits/sec receiver [131] 0.00-10.01 sec 2.30 GBytes 1.98 Gbits/sec 114 sender [131] 0.00-10.01 sec 2.30 GBytes 1.98 Gbits/sec receiver [SUM] 0.00-10.01 sec 84.2 GBytes 72.3 Gbits/sec 12904 sender [SUM] 0.00-10.01 sec 84.2 GBytes 72.2 Gbits/sec receiver CPU Utilization: local/sender 193.8% (3.5%u/190.3%s), remote/receiver 1033.3% (26.5%u/1006.9%s) snd_tcp_congestion cubic rcv_tcp_congestion cubic