19-22 March
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Friday, March 22 • 11:55 - 12:30
eBPF’s Abilities and Limitations: The Truth - Liz Rice & John Fastabend, Isovalent

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eBPF is proving to be a great platform for cloud native infrastructure tooling, with several CNCF projects leveraging it to implement networking, security and observability capabilities from within the kernel. But as with any new technology, there are various myths and uncertainties circulating about it in the community, particularly around its limitations: you might hear that it’s not Turing complete, that it can’t be used for anything that involves state, or that it can’t be used to parse Layer 7 protocols. In this talk we’ll disprove all these rumors with demonstrations including: - Looping in eBPF - Leveraging maps for state - An eBPF implementation of a Turing machine equivalent This doesn’t mean eBPF is the right hammer for every nail; using the Cilium project as an example we’ll discuss why not every feature is implemented in the kernel. (Yet?)

avatar for Liz Rice

Liz Rice

Chief Open Source Officer, Isovalent
Liz Rice is Chief Open Source Officer with eBPF specialists Isovalent, creators of the Cilium project. She was chair of the CNCF's Technical Oversight Committee 2019-2022, and Co-Chair of KubeCon + CloudNativeCon in 2018. She is also the author of O'Reilly books "Learning eBPF" and... Read More →
avatar for John Fastabend

John Fastabend

Principal Engineer, Isovalent
John is currently leading the Security and Observability team at Isovalent where he created Tetragon a runtime security and observability tool. When not working on Tetragon he maintains various bits and pieces of the Linux kernel contributing primarily to the BPF subsystem and networking... Read More →

Friday March 22, 2024 11:55 - 12:30 CET
Pavilion 7 | Level 7.1 | Room A
  Emerging + Advanced