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Maintaining DAMON (https://damonitor.github.io). All opinions are my own.
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In 2023, I made 8th and 4th biggest changes to Linux kernel memory management subsystem among the 295 people, for lines of changes (1,910) and commits (66).

For the Linux kernel whole tree, the numbers become 264th (3,562 lines) and 80th (147 commits) among 5,006 people.

For more details: https://sjp38.github.io/post/my_opensource_commits_stat_2023/

#linux #kernel #commits #statistics #2023
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A retrospect of DAMON development in 2023 has posted: https://lore.kernel.org/damon/20231231222250.140364-1-sj@kernel.org/

To quote the conclusion,

"""
DAMON community delivered multiple important features and a significant amount
of changes to the world via the collaboration between the 24 great
contributors. I would call 2023 as yet another successful and grateful years
of DAMON development.

Huge thanks to you again, DAMON community. Looking forward to continuing our
journey in 2024.

Hope you all enjoy the remaining holidays and a happy new year!
"""

#linux #kernel #damon
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SK Hynix released Heterogeneous Memory Software Development Kit (HMSDK) v2.0 which utilizes DAMON for tiered memory management.

https://github.com/skhynix/hmsdk/releases/tag/hmsdk-v2.0

#linux #kernel #damon
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Edited 11 months ago
I finally decided to unsubscribe linux-kernel@ and revisit my humble public-inbox-based mail client (https://github.com/sjp38/hackermail).

RE: https://social.kernel.org/objects/a58dbb3c-21f5-47fe-a08d-55e918830fe7
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kernellogger@fosstodon.org

Thorsten Leemhuis (acct. 1/4)

Edited 11 months ago

This talk from Sasha covers some of the factors that contribute to the difficulty of maintaining stable , and explains how those factors increase in difficulty and complexity as the stable kernel gets older. The talk also offer suggestions to reduce the long-term burden, as well as cover best practices around patch backport and reduction of technical debt on these longer-term .[1]

https://www.youtube.com/watch?v=m3Wiujcxc4k

[1] text based on this abstract: https://ossjapan2023.sched.com/event/1Tyom/challenges-around-long-term-kernel-maintenance-sasha-levin-google?iframe=no&w=100%&sidebar=yes&bg=no

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brauner@mastodon.social

Christian Brauner 🦊🐺

Edited 11 months ago

Hey people. Last year we had the first Devroom at . And we're running the Devroom for in 2024 as well!

2024 is taking place over the weekend of the 3 & 4 February in Brussels, Belgium!

It is a wonderful event that's very close to my and a lot of people's hearts!

Join @rppt, Daniel Borkmann, and @stgraber, and myself and make this another great !

We're very excited for your submissions!

https://lists.fosdem.org/pipermail/fosdem/2023q4/003536.html

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I found yet another insightful arXiv paper exploring DAMON and finding grateful area to improve. My holiday would never be boring :)

https://arxiv.org/pdf/2311.10275.pdf

#linux #kernel #damon
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kernellogger@fosstodon.org

Thorsten Leemhuis (acct. 1/4)

Edited 1 year ago

Next years @linuxplumbersconf will be in Vienna, Austria during the Week of 16 Sep.

To quote from the private " Conference is a Wrap, see you next year" mail I just received:

""we're looking forwards to seeing you at next year's Linux Plumbers Conference (possibly even in person?) which will be in Vienna, Austria on the Week of 16 September 2024 (co-located with OSS EU). We haven't found the actual space we'll be using yet, so we don't have exact days of that week to give you.""

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Edited 1 year ago
The video for my kernel summit talk about DAMON's current status and future plans is now available from the livestream record: https://www.youtube.com/live/VxaAorwL89c?si=vUk1V5jAZhw8YFdV&t=19455

#linux #kernel #damon #LinuxPlumbers #ksummit
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Finally uploaded the first version (hopefully the final version) of the slides for my kernel summit talk.

https://lpc.events/event/17/contributions/1624/

#linux #kernel #damon #LinuxPlumbers #ksummit
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Edited 1 year ago
I just sent the RFC patchset for DAMOS aggressiveness auto tuning[1], together with the ideas of Access/Contiguity-aware Memory Auto-Scaling (ACMA)[2] and DAMOS-based tiered memory management[3]. Hopefully those will all covered at my kernel summit talk[4]!

[1] https://lore.kernel.org/damon/20231112194607.61399-1-sj@kernel.org/
[2] https://lore.kernel.org/damon/20231112195114.61474-1-sj@kernel.org/
[3] https://lore.kernel.org/damon/20231112195602.61525-1-sj@kernel.org/
[4] https://lpc.events/event/17/contributions/1624/

#linux #kernel #damon #LinuxPlumbers #kernelsummit
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DAMON BoF for LPC is accepted and scheduled! So we will have the second physical DAMON meetup (Beer/Coffee/Tea Chat). I am looking forward to meeting you all.

https://lpc.events/event/17/contributions/1652/

#linux #kernel #damon #LinuxPlumbers
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Memory management subsystem pull requests for Linux v6.7-rc1, which contains the changes for DAMON, has sent. To quote Andrew's nice summary of DAMON-side changes:

- More DAMON/DAMOS maintenance and feature work from SeongJae Park i the
following patch series:

mm/damon: misc fixups for documents, comments and its tracepoint
mm/damon: add a tracepoint for damos apply target regions
mm/damon: provide pseudo-moving sum based access rate
mm/damon: implement DAMOS apply intervals
mm/damon/core-test: Fix memory leaks in core-test
mm/damon/sysfs-schemes: Do DAMOS tried regions update for only one apply interval

https://lore.kernel.org/mm-commits/20231101145447.60320c9044e7db4dba2d93e3@linux-foundation.org/

#linux #kernel #damon
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@LWN Thank you for making the voice on this important topic, Jon!

RE: https://fosstodon.org/users/LWN/statuses/111336114254016626
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corbet

Jonathan Corbet

LWN is trying to hire a full-time writer/editor:

https://lwn.net/Articles/949461/

Please talk to us if you think you might be interested, and pass on a pointer to anybody else who might be a good fit.
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Kernel Summit time table is uploaded!
The time for DAMON talk also updated together: https://lpc.events/event/17/contributions/1624/

#linux #kernel #damon #LinuxPlumbers #kernelsummit
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Edited 1 year ago
Glad to see an SOSP paper is referencing and exploring DAMON: https://multics69.github.io/pages/pubs/memtis-lee-sosp23.pdf

#linux #kernel #damon #sosp23
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Edited 1 year ago
Just submitted a BoF session for the second in-person DAMON community meetup to LPC. Hope it to be accepted and the community be gathered again like we did last year[1]!

[1] https://lpc.events/event/16/contributions/1388/

#linux #kernel #damon #lpc #LinuxPlumbers
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The official video for my #OSSEU talk for DAMO[S,N] is available on YouTube now: https://youtu.be/i7_W8-MozxY?si=AFhtdAzTbJJJFeGE

#linux #kernel #damon #damos #damo #osseu

RE: https://social.kernel.org/objects/55068f3e-9950-4d10-80d1-1f1fa9f8c60e
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My DAMON talk proposal for Kernel Summit track of Linux Plumbers Conference 2023 has accepted. We did DAMON talk every year at Kernel Summit since 2019, so this is the fifth Kernel Summit DAMON talk. Happy to have yet another chance. I hope it to be a place to discuss about future DAMON development works with core kernel developers.

https://lpc.events/event/17/contributions/1624/

#linux #kernel #damon #kernelsummit #linuxplumbers
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