Monitoring and Tuning the Linux Networking Stack: Receiving Data
This blog post explains how computers running the Linux kernel receive packets, as well as how to monitor and tune each component of the networking stack as packets flow from the network toward userland programs.
It is impossible to tune or monitor the Linux networking stack without reading the source code of the kernel and having a deep understanding of what exactly is happening.
This blog post will hopefully serve as a reference to anyone looking to do this.
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