[pmccarren]

Wasn't familiar with BPF programs until I saw your comment, and subsequently went on a search trail. Really like what I've read. BPF and XDP provide so much utility!

I thought Jessie had a good overview[0] of BPF

[0] https://blog.jessfraz.com/post/linux-observability-with-bpf/

[pstuart]

Brendan Gregg literally wrote the book on BPF: http://www.brendangregg.com/bpf-performance-tools-book.html

He is an engineering god.