RISC-V Microconference CFP

2023-06-23 – 21:34

We’re holding another edition of the RISC-V microconference for Plumbers  at 2023. Broadly speaking anything related to both Linux and RISC-V is  on topic, but discussions tend to involve the following categories:

  • How to support new RISC-V ISA features in Linux, both for the  standards and for vendor-specific extensions.
  • Discussions related to RISC-V based SOCs, which frequently include interactions with other Linux subsystems as well as core arch/riscv code.
  • Coordination with distributions and toolchains on userspace-visible behavior.

Accomplishments post 2022 Microconference

All the talks at the 2022 Plumbers microconference have made at least some progress, with many of them resulting in big chunks of merged code.
Specifically:

  • The riscv_hwprobe() syscall has been merged.
  • Support for ACPI has been merged.
  • Kconfig.socs is in the process of being refactored.
  • Preliminary patches for the RISC-V TEE have been posted.
  • Some optimized routines have been merged, but there’s still a long way to go.
  • Text patching is still up in the air, but we’ve been working through many of the issues pointed out during the discussions.

Likely Topics for Discussion Sections

The actual list of topics tends to be hard to pin down this early, but here’s a few topics that have been floating around the mailing lists and may be easier to resolve in real-time:

  • Do we even bother with generic optimized lib routines, or just go vendor-specific?
  • When can we start deprecating stuff? Likely-unused bits include: rv32, nommu, xip, old toolchains.
  • Is it time to give up on profiles and just set a base ourselves?
  • CI: Hosting PW-NIPA (currently hosted by Conor/Microchip), hosting “upstream kernel ci” on Github w/ sponsored runners?
  • Hardware assisted control-flow integrity on RISC-V CPUs.
  • Handling text patching on RISC-V systems.
  • How do we deal with vendor-specific memory management?

Submissions are made via LPC submission systems, selecting Track RISC-V MC

By Mike Rapoport | Posted in Announcements, Microconference | Comments Off on RISC-V Microconference CFP

Real-time and Scheduling Microconference CFP

2023-06-20 – 20:59

The real-time and scheduling micro-conference joins these two intrinsically connected communities to discuss the next steps together.

Over the past decade, many parts of PREEMPT_RT have been included in the official Linux codebase. Examples include real-time mutexes, high-resolution timers, lockdep, ftrace, RCU_PREEMPT, threaded interrupt handlers, and more. The number of patches that need integration has been significantly reduced, and the rest is mature enough to make their way into mainline Linux.

The scheduler is at the core of Linux performance. With different topologies and workloads, giving the user the best experience possible is challenging, from low latency to high throughput and from small power-constrained devices to HPC, where CPU isolation is critical.

The following accomplishments have been made as a result of last year’s micro-conference:

Ideas of topics to be discussed include (but are not limited to):

  • Improve responsiveness for CFS tasks – e.g., latency-nice patch
  • The new EEVDF scheduler proposal
  • Impact of new topology on CFS including hybrid or heterogeneous system
  • Taking into account task profile with IPCC or uclamp
  • Improvements in CPU Isolation
  • The status of PREEMPT_RT
  • Locking improvements – e.g., proxy execution
  • Improvements on SCHED_DEADLINE
  • Tooling for debugging scheduling and real-time

It is fine if you have a new topic that is not on the list. People are encouraged to submit any topic related to real-time and scheduling.

Please consider that the goal is to discuss open problems, preferably with patch set submissions already in discussion on LKML. The presentations are very short, and the main portion of the time should be given to the debate – thus, the importance of having an open and relevant problem, with people in the community engaged in the solution.

Submissions are made via LPC submission systems, selecting Track Real-time and Scheduling MC

By Steven Rostedt | Posted in Announcements, Microconference | Comments Off on Real-time and Scheduling Microconference CFP

Registration for LPC 2023 is open

2023-06-16 – 15:00

We’re happy to announce that registration for LPC 2023 is now open. To register please go to our attend page.

To try to prevent the instant sellout we had last year we’ve updated our cancellation policy to no refunds only transfers of registrations. You will find more details during the registration process. LPC 2023 follows the Linux Foundation’s health & safety policy.

As usual we expect to sell our rather quickly so don’t delay your registration for too long!

By Christian Brauner | Posted in Announcements | Comments Off on Registration for LPC 2023 is open

Registration for LPC 2023 is almost here

2023-06-14 – 09:04

Registration for LPC 2023 will be opened soon. Past experience told us that in-person registration would be sold out very fast. If you plan to join us in Richmond, please follow our blog and social media for the announcements about the registration!

By Mike Rapoport | Posted in Uncategorized | Comments Off on Registration for LPC 2023 is almost here

Microconference proposals are being published

2023-05-08 – 17:20

After some hiccups with Indico we’ve finally set up a page that lists submitted microconference proposals. Along with seasoned veterans like Containers and Checkpoint/Restore and RISC-V we are glad to see Live Patching microconference returning after a long break and a brand new Linux Kernel Debugging microconference.

The Proposed microconfences page will be updated from time until the CFP for microconference proposals will be closed on June, 1.

Be sure not to miss the deadline and submit your microconference!

 

By Mike Rapoport | Posted in Uncategorized | Comments Off on Microconference proposals are being published

eBPF & Networking Track

2023-04-24 – 08:49

Linux Plumbers Conference 2023 is pleased to host the eBPF & Networking Track!

For the fourth year in a row, the eBPF & Networking Track is going to bring together developers, maintainers, and other contributors from all around the globe to discuss improvements to the Linux kernel’s networking stack as well as BPF subsystem and their surrounding user space ecosystems such libraries, loaders, compiler backends, and other related system tooling.

The gathering is designed to foster collaboration and face to face discussion of ongoing development topics as well as to encourage bringing new ideas into the development community for the advancement of both subsystems.

Proposals can cover a wide range of topics related to Linux networking and BPF covering improvements in areas such as (but not limited to) core networking, protocols, routing, performance, tunneling, drivers, BPF infrastructure and its use in tracing, security, networking, scheduling and beyond, as well as non-kernel components like libraries, compilers, testing infra and tools.

Please come and join us in the discussion. We hope to see you there!

By Christian Brauner | Posted in Announcements | Comments Off on eBPF & Networking Track

CFP Open – Microconferences

2023-04-11 – 07:43

We are pleased to announce the Call for Papers (CFP) for Microconferences at the Linux Plumbers Conference (LPC) 2023.

LPC 2023 is currently planned to take place in Richmond, VA, USA from 13 November to 15 November. For details about the location, co-location with other events see our website and social media for updates.

Like in 2022, Linux Plumbers Conference will be a hybrid event but still, ideally microconference runners should be willing and able to attend in person.

As the name suggests, LPC is about Linux plumbing encompassing topics from kernel and userspace. A microconference is a set of sessions organized around a particular topic. The topic can be a kernel subsystem or a specific problem area in either kernel or userspace.

A microconference is supposed to be research and development in action and an abstract for a Microconference should be thought of as a set of research questions and problem statements.

The sessions in each microconference are expected to address specific problems and should generate new ideas, solutions, and patches. Sessions should be focused on discussion. Presentations should always aim to aid or kick off a discussion. If your presentation feels like a talk we would recommend to consider submitting to the LPC refereed track.

In the past years microconferences were organized around topics such as security, scalability, energy efficiency, toolchains, containers, printing, system boot, Android, scheduling, filesystems, tracing, or real-time. The LPC microconference track is open to a wide variety of topics as long as it is focused, concerned with interesting problems, and is related to open source and the wider Linux ecosystem. We are happy about a wide range of topics!

A microconference submission should outline the overall topic and list key people and problems which can be discussed. The list of problems and specific topics in a microconference can be continuously updated until fairly late. This will allow microconferences to cover topics that pop up after submission and to address new developments or problems.

Microconferences that have been at previous LPCs should list results and accomplishments in the submission and should make sure to cover follow-up work and new topics.

Submissions are due on or before 11:59PM UTC on Sunday, June 1, 2023.

By Mike Rapoport | Posted in Announcements | Comments Off on CFP Open – Microconferences

CFP Open – Refereed Track Presentations

2023-04-04 – 07:38

The Call for Refereed Presentation Proposals for the 2023 edition of the Linux Plumbers Conference (LPC) is now open. We plan to hold LPC in Richmond Virginia on November 13-15, 2023.

Submitters should ideally be able to give their presentation in person, although presenting remotely will be possible if necessary. Expectation is that the presentation will be done live in either case, to maximize audience interaction. Please see our website or social media for regular updates.

Refereed Presentations are 45 minutes in length and should focus on a specific aspect of the “plumbing” in a Linux system. Examples of Linux plumbing include core kernel subsystems, init systems, core libraries, windowing systems, management tools, device support, media creation/playback, and so on. The best presentations are not about finished work, but rather problem statements, proposals, or proof-of-concept solutions that require face-to-face discussions and debate.
The Refereed Presentations track will be running throughout all three days of the conference.

Linux Plumbers Conference Program Committee members will be reviewing all submitted proposals. High-quality submissions that cannot be accepted due to the limited number of slots will be forwarded to organizers of suitable Linux Plumbers Microconferences for further consideration.
Submissions are due on or before 11:59PM UTC on Sunday, August 6, 2023.

By Kate Stewart | Posted in Announcements | Comments Off on CFP Open – Refereed Track Presentations

Preliminary Dates and Location for LPC2023

2023-02-02 – 16:18

The 2023 LPC PC is pleased to announce that we’ve begun exclusive negotiations with the Omni Hotel in Richmond, VA to host Plumbers 2023 from 13-15 November. Note: These dates are not yet final (nor is the location; we have had one failure at this stage of negotiations from all the Plumbers venues we’ve chosen). We will let you know when this preliminary location gets finalized (please don’t book irrevocable travel until then).

The November dates were the only ones that currently work for the venue, but Richmond is on the same latitude as Seville in Spain, so it should still be nice and warm.

By James Bottomley | Posted in Uncategorized | Tagged | Comments Off on Preliminary Dates and Location for LPC2023

LPC 2022 Attendee Survey Summary

2023-01-06 – 17:15

We had 206 responses to the Linux Plumbers survey in 2022, which, given the total number of in person conference participants of 401, and virtual participants of 320, has provided high confidence in the feedback.   Overall there were about 89% of those registered, either showed up as in person or virtual.   As this was the first time we’ve tried to do this type of hybrid event, the feedback has been essential as we start planning for something similar in 2023.  One piece of input, we’ll definitely be incorporating for next year is to have separate surveys for in person and virtual attendees!  So a heartfelt “thank you” to everyone who participated in this survey and waded through the non relevant questions to share their experience!   

Overall: 91.8% of respondents were positive about the event, with 6.3% as neutral and 1.9% were dissatisfied. 80.1% indicated that the discussions they participated in helped resolve problems.  The BOF track was popular and we’re looking to include it again in 2023.   Due to the fact we were having our first in person since the pandemic started, we did this event as a hybrid event with reduced in person registration compared to prior years, as we were unsure how many would be willing to travel and our venue’s capacity.   The conference sold out of regular tickets very quickly after opening up registration though, so we set up a waiting list.  With some the travel conditions and cancelations, we were able to work through the daunting waiting list, and offer spots to all of those on the list by the conference date.  Venue capacity is something we’re looking closely at for next year and will outline the plan when the CFP opens early this year.

Based on feedback from prior years, we videotaped all of the sessions, and the videos are now posted. There are 195 videos from the conference! The committee has also linked them to the detailed schedule and clicking on the video link in the presentation materials section of any given talk or discussion. 72% of respondents plan to watch them to clarify points and another 10% are planning to watch them to catch up on sessions that they were not able to attend. 

Venue: In general, 45.6% of respondents considered the venue size to be a good match, but a significant portion would have preferred it to be bigger (47%) as well. The room size was considered effective for participation by 78.6% of the respondents.

Content: In terms of track feedback, Linux Plumbers Refereed track and Kernel Summit track were indicated as very relevant by almost all respondents who attended. The BOFs track was positively received and will continue.   The hallway track continues to be regarded as most relevant, and appreciated. We will continue to evaluate options for making private meeting and hack rooms available for groups who need to meet onsite.

Communication:  The emails from the committee continue to be positively received.  We were able to incorporate some of the suggestions from prior surveys, and are continuing to look for options to make the hybrid event communications between in person and virtual attendees work better.  

Events: Our evening events are feeling the pressure from the number of attendees especially with the other factors from the pandemic.   The first night event had more issues than the closing event and we appreciate the constructive suggestions in the write-in comments.  The survey was still positive about the events overall,   so we’ll see what we can do make this part of the “hallway track” more effective for everyone next year.

There were lots of great suggestions to the “what one thing would you like to see changed” question, and the program committee has met to discuss them. Once a venue is secured, we’ll be reviewing them again to see what is possible to implement this coming year.

Thank you again to the participants for their input and help on improving the Linux Plumbers Conference.   The conference is planned to be in North America in the October/November timeframe for 2023.  As soon as we secure a venue, dates and location information will be posted in a blog by the committee chair,  Christian Brauner.

By Kate Stewart | Posted in Feedback | Tagged | Comments Off on LPC 2022 Attendee Survey Summary

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