iperf3 -4 -P3 –bidir -V -c ash.speedtest.clouvider.net -p 5203
iperf 3.16
Linux cmstackercomp 6.8.0-136-generic #136-Ubuntu SMP PREEMPT_DYNAMIC Wed Jul 1 21:53:05 UTC 2026 ×86_64
Control connection MSS 1448
Time: Sun, 09 Aug 2026 01:05:09 GMT
Connecting to host ash.speedtest.clouvider.net, port 5203
Cookie: f4iy5i4rubysheoxa6ptxatlhblhfzxkflu3
TCP MSS: 1448 (default)
[ 5] local 192.168.4.64 port 34434 connected to 45.250.25.133 port 5203
[ 7] local 192.168.4.64 port 34442 connected to 45.250.25.133 port 5203
[ 9] local 192.168.4.64 port 34446 connected to 45.250.25.133 port 5203
[ 11] local 192.168.4.64 port 34452 connected to 45.250.25.133 port 5203
[ 13] local 192.168.4.64 port 34468 connected to 45.250.25.133 port 5203
[ 15] local 192.168.4.64 port 34476 connected to 45.250.25.133 port 5203
Starting Test: protocol: TCP, 3 streams, 131072 byte blocks, omitting 0 seconds, 10 second test, tos 0
[ ID][Role] Interval Transfer Bitrate Retr Cwnd
[ 5][TX-C] 0.00-1.00 sec 24.4 MBytes 204 Mbits/sec 3 327 KBytes
[ 7][TX-C] 0.00-1.00 sec 13.6 MBytes 114 Mbits/sec 4 397 KBytes
[ 9][TX-C] 0.00-1.00 sec 48.5 MBytes 407 Mbits/sec 0 1014 KBytes
[SUM][TX-C] 0.00-1.00 sec 86.5 MBytes 725 Mbits/sec 7
[ 11][RX-C] 0.00-1.00 sec 48.4 MBytes 406 Mbits/sec
[ 13][RX-C] 0.00-1.00 sec 31.6 MBytes 265 Mbits/sec
[ 15][RX-C] 0.00-1.00 sec 27.6 MBytes 232 Mbits/sec
[SUM][RX-C] 0.00-1.00 sec 108 MBytes 902 Mbits/sec
[ 5][TX-C] 1.00-2.00 sec 30.4 MBytes 255 Mbits/sec 0 390 KBytes
[ 7][TX-C] 1.00-2.00 sec 11.4 MBytes 95.4 Mbits/sec 0 419 KBytes
[ 9][TX-C] 1.00-2.00 sec 69.5 MBytes 583 Mbits/sec 0 1.06 MBytes
[SUM][TX-C] 1.00-2.00 sec 111 MBytes 933 Mbits/sec 0
[ 11][RX-C] 1.00-2.00 sec 56.4 MBytes 473 Mbits/sec
[ 13][RX-C] 1.00-2.00 sec 29.1 MBytes 244 Mbits/sec
[ 15][RX-C] 1.00-2.00 sec 25.8 MBytes 216 Mbits/sec
[SUM][RX-C] 1.00-2.00 sec 111 MBytes 933 Mbits/sec
[ 5][TX-C] 2.00-3.00 sec 30.8 MBytes 258 Mbits/sec 0 441 KBytes
[ 7][TX-C] 2.00-3.00 sec 9.62 MBytes 80.7 Mbits/sec 0 437 KBytes
[ 9][TX-C] 2.00-3.00 sec 69.0 MBytes 579 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 2.00-3.00 sec 109 MBytes 918 Mbits/sec 0
[ 11][RX-C] 2.00-3.00 sec 58.4 MBytes 490 Mbits/sec
[ 13][RX-C] 2.00-3.00 sec 28.2 MBytes 237 Mbits/sec
[ 15][RX-C] 2.00-3.00 sec 24.8 MBytes 208 Mbits/sec
[SUM][RX-C] 2.00-3.00 sec 111 MBytes 934 Mbits/sec
[ 5][TX-C] 3.00-4.00 sec 28.8 MBytes 241 Mbits/sec 0 455 KBytes
[ 7][TX-C] 3.00-4.00 sec 10.8 MBytes 90.1 Mbits/sec 0 454 KBytes
[ 9][TX-C] 3.00-4.00 sec 72.5 MBytes 608 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 3.00-4.00 sec 112 MBytes 939 Mbits/sec 0
[ 11][RX-C] 3.00-4.00 sec 58.2 MBytes 488 Mbits/sec
[ 13][RX-C] 3.00-4.00 sec 28.1 MBytes 236 Mbits/sec
[ 15][RX-C] 3.00-4.00 sec 24.8 MBytes 207 Mbits/sec
[SUM][RX-C] 3.00-4.00 sec 111 MBytes 932 Mbits/sec
[ 5][TX-C] 4.00-5.00 sec 28.4 MBytes 238 Mbits/sec 0 460 KBytes
[ 7][TX-C] 4.00-5.00 sec 9.25 MBytes 77.6 Mbits/sec 0 471 KBytes
[ 9][TX-C] 4.00-5.00 sec 72.0 MBytes 604 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 4.00-5.00 sec 110 MBytes 920 Mbits/sec 0
[ 11][RX-C] 4.00-5.00 sec 58.4 MBytes 490 Mbits/sec
[ 13][RX-C] 4.00-5.00 sec 28.2 MBytes 237 Mbits/sec
[ 15][RX-C] 4.00-5.00 sec 24.9 MBytes 209 Mbits/sec
[SUM][RX-C] 4.00-5.00 sec 112 MBytes 936 Mbits/sec
[ 5][TX-C] 5.00-6.00 sec 28.9 MBytes 242 Mbits/sec 0 465 KBytes
[ 7][TX-C] 5.00-6.00 sec 10.6 MBytes 89.1 Mbits/sec 0 489 KBytes
[ 9][TX-C] 5.00-6.00 sec 72.0 MBytes 604 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 5.00-6.00 sec 112 MBytes 935 Mbits/sec 0
[ 11][RX-C] 5.00-6.00 sec 58.4 MBytes 490 Mbits/sec
[ 13][RX-C] 5.00-6.00 sec 28.0 MBytes 235 Mbits/sec
[ 15][RX-C] 5.00-6.00 sec 24.9 MBytes 209 Mbits/sec
[SUM][RX-C] 5.00-6.00 sec 111 MBytes 933 Mbits/sec
[ 5][TX-C] 6.00-7.00 sec 28.0 MBytes 235 Mbits/sec 0 465 KBytes
[ 7][TX-C] 6.00-7.00 sec 11.5 MBytes 96.5 Mbits/sec 0 557 KBytes
[ 9][TX-C] 6.00-7.00 sec 72.0 MBytes 604 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 6.00-7.00 sec 112 MBytes 935 Mbits/sec 0
[ 11][RX-C] 6.00-7.00 sec 58.5 MBytes 491 Mbits/sec
[ 13][RX-C] 6.00-7.00 sec 28.1 MBytes 236 Mbits/sec
[ 15][RX-C] 6.00-7.00 sec 24.6 MBytes 207 Mbits/sec
[SUM][RX-C] 6.00-7.00 sec 111 MBytes 933 Mbits/sec
[ 5][TX-C] 7.00-8.00 sec 27.9 MBytes 234 Mbits/sec 0 465 KBytes
[ 7][TX-C] 7.00-8.00 sec 12.0 MBytes 101 Mbits/sec 0 649 KBytes
[ 9][TX-C] 7.00-8.00 sec 70.5 MBytes 591 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 7.00-8.00 sec 110 MBytes 926 Mbits/sec 0
[ 11][RX-C] 7.00-8.00 sec 58.5 MBytes 491 Mbits/sec
[ 13][RX-C] 7.00-8.00 sec 28.1 MBytes 236 Mbits/sec
[ 15][RX-C] 7.00-8.00 sec 24.8 MBytes 208 Mbits/sec
[SUM][RX-C] 7.00-8.00 sec 111 MBytes 934 Mbits/sec
[ 5][TX-C] 8.00-9.00 sec 27.1 MBytes 228 Mbits/sec 0 465 KBytes
[ 7][TX-C] 8.00-9.00 sec 14.9 MBytes 125 Mbits/sec 0 766 KBytes
[ 9][TX-C] 8.00-9.00 sec 67.9 MBytes 569 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 8.00-9.00 sec 110 MBytes 922 Mbits/sec 0
[ 11][RX-C] 8.00-9.00 sec 58.6 MBytes 492 Mbits/sec
[ 13][RX-C] 8.00-9.00 sec 28.0 MBytes 235 Mbits/sec
[ 15][RX-C] 8.00-9.00 sec 24.8 MBytes 208 Mbits/sec
[SUM][RX-C] 8.00-9.00 sec 111 MBytes 934 Mbits/sec
[ 5][TX-C] 9.00-10.00 sec 38.9 MBytes 326 Mbits/sec 0 725 KBytes
[ 7][TX-C] 9.00-10.00 sec 16.4 MBytes 137 Mbits/sec 0 916 KBytes
[ 9][TX-C] 9.00-10.00 sec 56.8 MBytes 476 Mbits/sec 0 1.42 MBytes
[SUM][TX-C] 9.00-10.00 sec 112 MBytes 939 Mbits/sec 0
[ 11][RX-C] 9.00-10.00 sec 59.0 MBytes 495 Mbits/sec
[ 13][RX-C] 9.00-10.00 sec 28.0 MBytes 235 Mbits/sec
[ 15][RX-C] 9.00-10.00 sec 24.5 MBytes 205 Mbits/sec
[SUM][RX-C] 9.00-10.00 sec 112 MBytes 935 Mbits/sec
Test Complete. Summary Results:
[ ID][Role] Interval Transfer Bitrate Retr
[ 5][TX-C] 0.00-10.00 sec 293 MBytes 246 Mbits/sec 3 sender
[ 5][TX-C] 0.00-10.01 sec 290 MBytes 243 Mbits/sec receiver
[ 7][TX-C] 0.00-10.00 sec 120 MBytes 101 Mbits/sec 4 sender
[ 7][TX-C] 0.00-10.01 sec 117 MBytes 98.4 Mbits/sec receiver
[ 9][TX-C] 0.00-10.00 sec 671 MBytes 563 Mbits/sec 0 sender
[ 9][TX-C] 0.00-10.01 sec 668 MBytes 560 Mbits/sec receiver
[SUM][TX-C] 0.00-10.00 sec 1.06 GBytes 909 Mbits/sec 7 sender
[SUM][TX-C] 0.00-10.01 sec 1.05 GBytes 901 Mbits/sec receiver
CPU Utilization: local/sender 27.1% (3.2%u/23.9%s), remote/receiver 1.0% (0.2%u/0.9%s)
CPU Utilization: local/receiver 27.1% (3.2%u/23.9%s), remote/sender 1.0% (0.2%u/0.9%s)
snd_tcp_congestion cubic
rcv_tcp_congestion cubic
[ 11][RX-C] 0.00-10.00 sec 576 MBytes 483 Mbits/sec 37 sender
[ 11][RX-C] 0.00-10.01 sec 573 MBytes 480 Mbits/sec receiver
[ 13][RX-C] 0.00-10.00 sec 289 MBytes 242 Mbits/sec 146 sender
[ 13][RX-C] 0.00-10.01 sec 286 MBytes 239 Mbits/sec receiver
[ 15][RX-C] 0.00-10.00 sec 255 MBytes 214 Mbits/sec 151 sender
[ 15][RX-C] 0.00-10.01 sec 251 MBytes 211 Mbits/sec receiver
[SUM][RX-C] 0.00-10.00 sec 1.09 GBytes 939 Mbits/sec 334 sender
[SUM][RX-C] 0.00-10.01 sec 1.08 GBytes 930 Mbits/sec receiver
snd_tcp_congestion cubic
rcv_tcp_congestion cubic
iperf Done.