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minutes: IO Visor TSC / Dev Meeting

Brenden Blanco
 

Hi All,

Thanks for joining the discussion today. As usual, here are my notes.

-Brenden

=== Discussion ===

John:
- sockmap fixes pushed
- fixed broken tests
- sockmap hash impl next
- bounded loop rfc making progress
- cilium code using sockhash almost finished as well

Yonghong:
- python3 test cleanup
- except memleak tool
- raw tracepoint support in bcc
- runqlat tool
- bio tracing
- more precise than kprobes
- next work: introspection - bpf trace program in perf

Martin:
- BTF id patch WIP
- BTF id -> BTF map
- next: support function pointer type in BTF

William:
- moving bpf tunnel example -> selftest
- hitting issue with long running test tunnel cases
- try enabling kasan to debug
- verifier issue bugfix (ctx + constant arithmetic) WIP

Daniel:
- finalizing removal of some inst from jit
- few bugfixes in x86 jit

Alexei:
- AF_XDP patches being reviewed, looks ok

Jesper:
- Testing AF_XDP patches currently
- no driver changes needed with xdp_redirect
- driver changes still needed for zerocopy
- intel: 12mpps, mlnx: 9mpps drop

Brendan:
- CFP for USENIX LISA in October, Nashville TN

=== Attendees ===
Brenden Blanco
Alex Reece
Jakub Kicinski
Martin Lau
Quentin Monnet
Sandipan
Jiong Wang
William Tu
Alexei Starovoitov
Alexander Duyck
John Fastabend
Jesper Brouer
Daniel Borkmann
Yonghong Song
Brendan Gregg
Ferris

Yonghong Song
 

On Wed, May 2, 2018 at 4:39 PM, Brenden Blanco via iovisor-dev
<iovisor-dev@...> wrote:
Hi All,

Thanks for joining the discussion today. As usual, here are my notes.

-Brenden

=== Discussion ===

John:
- sockmap fixes pushed
- fixed broken tests
- sockmap hash impl next
- bounded loop rfc making progress
- cilium code using sockhash almost finished as well

Yonghong:
- python3 test cleanup
- except memleak tool
This is the test_tools_memleak issue I mentioned.
https://github.com/iovisor/bcc/issues/1685

I would be great if somebody who knows python (esp. python3) better
can help take a look.

Bjorn Topel
 

2018-05-03 1:39 GMT+02:00 Brenden Blanco via iovisor-dev
<iovisor-dev@...>:
Hi All,

Thanks for joining the discussion today. As usual, here are my notes.

-Brenden

=== Discussion ===

John:
- sockmap fixes pushed
- fixed broken tests
- sockmap hash impl next
- bounded loop rfc making progress
- cilium code using sockhash almost finished as well

Yonghong:
- python3 test cleanup
- except memleak tool
- raw tracepoint support in bcc
- runqlat tool
- bio tracing
- more precise than kprobes
- next work: introspection - bpf trace program in perf

Martin:
- BTF id patch WIP
- BTF id -> BTF map
- next: support function pointer type in BTF

William:
- moving bpf tunnel example -> selftest
- hitting issue with long running test tunnel cases
- try enabling kasan to debug
- verifier issue bugfix (ctx + constant arithmetic) WIP

Daniel:
- finalizing removal of some inst from jit
- few bugfixes in x86 jit

Alexei:
- AF_XDP patches being reviewed, looks ok
Unfortunately, I missed the call. Appreciate that AF_XDP was took into
discussion! Thanks for the review!

Jesper:
- Testing AF_XDP patches currently
- no driver changes needed with xdp_redirect
- driver changes still needed for zerocopy
- intel: 12mpps, mlnx: 9mpps drop
Again, thanks a lot for spending time on the AF_XDP patchset!


Cheers,
Björn

Brendan:
- CFP for USENIX LISA in October, Nashville TN

=== Attendees ===
Brenden Blanco
Alex Reece
Jakub Kicinski
Martin Lau
Quentin Monnet
Sandipan
Jiong Wang
William Tu
Alexei Starovoitov
Alexander Duyck
John Fastabend
Jesper Brouer
Daniel Borkmann
Yonghong Song
Brendan Gregg
Ferris
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