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!
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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
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
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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:
please feel free to add thoughts there, or we can work on this document on Tuesday.
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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?
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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
