Hi All, Here are the meeting minutes from yesterday. Please note the gdoc link regarding the roadmap items.
Please also encourage those you know to sign up for the iovisor-dev mailer, I know there are continually people I'm adding in cc that should be on this list! ====================== Tom to send email on logistics for XDP summit next week (done) 24+ signed up, no more possible Topics to discuss (agenda to come later) APIs: tom Ceth: yunsong XDP implementation: brenden Cilium: tgraf Others: Network virtualization encryption Netronome update on bpf on HW Example apps: ila router lb concepts, no demo How to load/offload bpf programs api-wise Ecosystem solutions Topic owners to send proposals (to Tom?) by Friday ====================== Roadmap: main issue is not features, but usability lots of new users stumble on introductory stuff like wrong kernel version undocumented api (what is a program type?) many samples don't work, obscure errors ast: verifier errors to be improved todo: many llvm e.g. padding issues ast: working in xdp to change packet size dma issues faster/better string support in the kernel, e.g. filenames, cgroupv2, secmark (sp?) inlining of map lookups for perf optimization bounded loops 32 bit subregister in llvm vectorization with annotations from the compiler, used for hardware offloads lru maps idr tables debugability: hash of bpf programs I have added the above to: https://docs.google.com/document/d/13QmDND0mTgrCohameGoG2qNTn2i1lO75ccrul5tDWhU/edit?usp=sharing please feel free to add thoughts there, or we can work on this document on Tuesday. ======================== systemtap: interesting and inevitable bpf as optional runtime `-stap bpf` "can't implement strings/stats without bpf enhancements" - needs more detail, global strings? Brendan Gregg: inconveniences seen so far: missing examples for usdt, tracepoints time sampling add llvm error checker? ======================== Attendees: Yunsong Lu Tom Herbert Prem Jonnalagadda Pere Monclus Martin Lau Keith Burns John Fastabend Joe Stringer Hannes Frederic Sowa Deepa Kalani Daniel Borkmann Brenden Blanco Brendan Gregg Ari Saha Alexei Starovoitov
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