minutes: IO Visor TSC/Dev Meeting

Brenden Blanco

Hi All,

Thanks for joining the call today. Here are my notes!


=== Discussion ===

* 0.7.0 tag released to support 4.18
* Flaky test on fc26 - usdt3 - monitor and perhaps relax contraints in test

* Discussing API for BTF support in kernel
* prototyping currently the kernel interface
* will need a few more weeks
* Introspection improvements
* Duplicating some ip/tc functionality into bpftool
* Reason: want one integrated tool for all bpf introspection
* Some debate about what the value of duplicating code is
* Need to avoid too many tools
* Lots of non-net users: cgroups, tc, xdp, perf
* dual license libbpf to converge the code?

* bpf-next opened, swamped with code reviews

* 32 bit support
* standalone flow control analyzer in progress
* will try to remove extra config flags

* AF_XDP for OVS
* without zero copy driver, perf tests
* > 3Mpps rx so far
* working on port->port forwarding, with memcpy
* needs zero-copy driver to improve tx speeds
* will try with i40e driver

=== Attendees ===
Brenden Blanco
Jakub Kicinski
Jiong Wang
Yonghong Song
Jesper Brouer
Alexei Starovoitov
Joe Stringer
Brendan Gregg
William Tu