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Questions tagged [iperf]

A network test tool.

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iPerf :WARNING: did not receive ack of last datagram after 10 tries

client side: iperf -c 10.0.1.5 -u Client connecting to 10.0.1.5, UDP port 5001 Sending 1470 byte datagrams, IPG target: 11215.21 us UDP buffer size: 9.00 KByte (default) [ 28] local 10.0.1.2 port ...
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Iperf3 - Python - EXE

I am trying to create a python script which would also include iperf3 library and then compile this to exe, so I can run it as CMD tool on Windows. I was able to create a script and compile it using ...
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1answer
49 views

who kill my iperf on remote Ubuntu 14.04?

I have a remote server with Ubuntu 14.04 and iperf 2.0.5. And also have a local device, which is use to test the throughput between local and remote server. But a strange thing is sometimes the iperf ...
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Inconstant Bandwidth despite Bandwidth Limitation in VirtualBox

In VirtualBox, I have two Ubuntu 18.04 VMs running on an Ubuntu 18.04 host. My target is to simulate network traffic between the two VMs (one as a Server, one as a Client). Therefore I set the VM ...
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0answers
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Perf does not annotate .c files called by Rust

I am using perf to profile a rust application which calls some .c files. I want to annotate the .c functions. However in the perf report i can find only rust code annotated. I have compiled the ...
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1answer
3k views

Perf top - warning perf not found for kernel [closed]

I downloaded perf program for Ubuntu using this command: sudo apt-get install linux-tools-common linux-tools-generic But when I try perf top it gives me this WARNING: perf not found for kernel 4.9....
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1answer
6k views

WARNING: did not receive ack of last datagram after 10 tries

I try making network performance measurement using iperf in UDP option. I perform all the operations in Ubuntu Terminal. I have two computer and I have number of interfaces on each of my computers. ...
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2answers
138 views

Can I assign any IPv4 address I want to a network interface in Ubuntu?

Title basically reveals what I want to learn. Theoretically, I can assign an IPv4 address via ifconfig <interfaceName> <IP address>, for example ifconfig myInterface 172.16.25.125. However,...
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2answers
1k views

Cannot find tcpprobe in ubuntu

I want to use tcpprobe to record the state of a TCP connections but I cannot find tcpprobe in /proc/net. Is tcpprobe not present by default? tcpprobe