How to monitor current output/receive queue length in Linux

Posted by IZhen on Server Fault See other posts from Server Fault or by IZhen
Published on 2011-04-19T15:01:36Z Indexed on 2013/11/05 4:00 UTC
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I want to check the capacity and performance of my network. Besides checking the txkB/s and rxkB/s via Sar, I'd also like to see the average queue length of the network interface(so that the average queueing time in the interface can be calculated). It seems that netstat can give a per socket queue length, is it possible to get a per interface statics(a bit like Network Interface\Output Queue Length in Windows)?

A related and kind of reverse questions is How do I view the TCP Send and Receive Queue sizes on Windows?

Thanks

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