Hi All, Thank you for joining the call today. Here are my notes from the discussion.
Thanks, Brenden === Discussion === Brenden: * Plan to tag release to coincide with kernel 5.0 Brendan: * Speaking this weekend at SCaLE in Los Angeles Yonghong: * LLVM work * compile once - run anywhere WIP * support for static variables Daniel: * Global data support work in kernel continues * Ability to lock maps as read-only * bugfixes after merge window Alexei: * Some thoughts on future work of BPF * especially with introduction of BTF * overall needs concerted effort to improve debuggability * BTF for programs itself with source/type/layout information * structures for maps and global data * suggest to always require type information (already turned on by default in bcc and supported by llvm) * Some extra hoops to jump through for driver embedded BPF * to be enabled with a sysctl * kernel support is ready * some long tail of support - e.g. systemd has raw assembly BPF * kconfig option - eventual deprecation * if kernel is default strict, llvm should automatically emit BTF as well * memcg accounting patch status? * Daniel - still being worked on * proposal to enable the same accounting for verifier memory * helps to enable verifier multithreading Jakub: * question regarding global data atomicity * Daniel - requires read once / write once instructions to work properly * some todo work on documentation, interpreter + jit implementations * depends on architecture (machine word size guarantees only) Jesper: * which llvm release supports BTF * landed in December - will be in 8.0, better in 9.0 * working on tutorial for xdp at netdev * https://www.netdevconf.org/0x13/session.html?tutorial-XDP-hands-on * soliciting feedback * https://github.com/xdp-project/xdp-tutorial/ Saeed: * request to devote some time in the next meeting to iron out some XDP issues * please send an agend in reply to the reminder email before next call * prepare discussion over email in between time === Attendees === Alexei Starovoitov Marco Leogrande Mauricio Vasquez Paul Chaignon Brenden Blanco Jiong Wang Yonghong Song Daniel Borkmann Jesper Brouer Quentin Monnet Dan Siemon Jakub Kicinski Saeed John Yutaro -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#1598): https://lists.iovisor.org/g/iovisor-dev/message/1598 Mute This Topic: https://lists.iovisor.org/mt/30289974/21656 Group Owner: iovisor-dev+ow...@lists.iovisor.org Unsubscribe: https://lists.iovisor.org/g/iovisor-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
