[Solved] How to query tcp buffer sizes for a certain socket?

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Hi folks,

Does anybody know how to query the tcp buffer sizes for certain socket?

For example lets say I run iperf3 -c foo.example.com and want to query the tcp buffer sizes that are used for the tcp socket created for iperf3. How could I do that?

I tried to get a look into the file descriptor by running cat /proc/<PID>/fd/3 and so on but got a 'no such file or directory' error every time.

I do not want to query the general limits from /proc/sys/net/ipv4/tcp_mem. I would like to know the concrete parameters for a certain socket.

Thanks in advance for your help.

Best regards,
Joerg K.

JK

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