InXpect, a profiler for XDP networking applications

What is it about?

Development of a profiler for XDP applications that is faster and more accurate than state-of-the-art profilers such as Linux perf and bpftool. InXpect uses the newly introduced eBPF kfuncs to directly access the Performance Monitoring Counters PMCs, reducing overhead and increasing accuracy.

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Why is it important?

We leverage a new technique to streamline access to the Performance Monitoring Counters PMCs, which store Hardware Events, making the profiling faster and more accurate.