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Maintaining DAMON (https://damonitor.github.io). All opinions are my own.
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Posted "a guide to DAMON tuning and results interpretation for hot pages" to mailing lists[1]. Hopefully this will help better tuning of DAMON for given purposes. Cross-posted it to the blog[2] too, for people who prefer rendered page, and possible future revisions.

[1] https://lore.kernel.org/20241108232536.73843-1-sj@kernel.org
[2] https://damonitor.github.io/posts/damon_tuning_guide_for_hot_pages/

#linux #kernel #damon #hotpage_detection #tuning #guide
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Just released damo v2.5.4[1]. The major new feature in this release is recency/temperature histogram visualization[2] of DAMON's access pattern snapshots.

[1] https://github.com/damonitor/damo/blob/v2.5.4/release_note#L4
[2] https://github.com/damonitor/damo/blob/v2.5.4/USAGE.md#access-report-styles

#linux #kernel #damon #damo
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I'm still looking for a space on `damo` USAGE.md[1] for a formal documentation of DAMOS auto-tuning usage. Because I'm only continue failing it everyday, just wrote a blog post for an informal usage of it with examples: https://damonitor.github.io/posts/damo_autotune_example/

[1] https://github.com/damonitor/damo/blob/next/USAGE.md

#linux #kernel #damon #damo #damos #auto-tuning
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vbabka

Edited 5 months ago
kernel job posting
Show content
The core kernel team at SUSE Labs (where I am as well) is looking for a Linux Kernel Security Expert! https://jobs.suse.com/us/en/job/71006364
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karen@floss.social

Karen Sandler

Edited 8 months ago

Outreachy is getting squeezed financially from reduced funding related to diversity programs and reduced funding for open source orgs. Can you help us spread the word about how important the program is and help us connect to folks who might contribute funding?

https://www.outreachy.org/blog/2024-08-14/outreachy-needs-your-help/

@outreachy

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Just realized the new member looks similar to the penguin of FB kernel team logo hat I found from https://opensource.fb.com/linux/ (file name: kernel-team-logo.svg)

RE: https://social.kernel.org/objects/11adc48b-1b76-4d76-8e86-c6c89d87d895
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stgraber@hachyderm.io

Stéphane Graber

The CFP for the Containers devroom at @fosdem 2025 is now open! https://discuss.linuxcontainers.org/t/fosdem-2025-containers-devroom-call-for-papers/21956

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geert@society.oftrolls.com

Geert Uytterhoeven

Thanks @jejb for restoring sanity!

https://lore.kernel.org/all/e7d548a7fc835f9f3c9cb2e5ed97dfdfa164813f.camel@HansenPartnership.com/

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LWN@fosstodon.org

LWN.net

Several Russian developers lose kernel maintainership status

https://lwn.net/Articles/995186/

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The bubble is not popped yet. The 30-days PyPI downloads of 'damo' has doubled (8,000 -> 16,000) again, about ten days after the last doubling.

#linux #kernel #damon #damo #pypistats

RE: https://social.kernel.org/objects/d7273398-9f50-43bc-97c8-14673a13d783
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Edited 6 months ago
DAMON project site's main page (https://damonitor.github.io) was redirecting[1] to a personal blog post, with its hidden real main page[2]. Now DAMON has its own project blog, and does not redirect[3] to personal blog anymore.

[1] https://github.com/damonitor/damonitor.github.io/blob/230038cfd5b85783bc6391f675fab66abe81eb79/index.html
[2] https://damonitor.github.io/_index.html
[3] https://github.com/damonitor/damonitor.github.io/commit/817d619090d8abb02e6a4020ff5d0b9664c6464c

#linux #kernel #damon #blog
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I posted[1] an RFC patchset for DAMON debugfs interface removal a few days ago. Unless someone objects, the change will be merged soon, maybe into v6.14-rc1.

[1] https://lore.kernel.org/20241015175412.60563-1-sj@kernel.org

#linux #kernel #damon
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After about ten days from the last posting[1] of damo [2] monthly downloads record, the count has doubled (4,000 -> 9,000) again. The time for doubling the count has been reduced from 18 months to 7 months, then to 10 days this time.

Because daily stat graphs on PyPI are not very convenient for monthly download stats, I plotted the 'rolling 30-day downloads' count. It shows this might be a temporal bubble that will pop soon. But, doubling is doubling. I'll seize tonight :D

[1] https://social.kernel.org/notice/AmYHJtlc5aI4ObXnKS
[2] https://github.com/damonitor/damo

#linux #kernel #damon #damo #pypistats
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An official video is also uploaded on YouTube: https://youtu.be/mRU1ZeNB9WY?feature=shared

#linux #kernel #damon #linuxplumbers

RE: https://social.kernel.org/objects/f6b89ea2-239f-40c8-b910-3eb3ef48c66b
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At OSSummit Europe last month, I and Honggyu Kim presented[1] a few DAMON recipes including those for memory auto-scaling and CXL memory tiering. The video is now available at YouTube[2].

[1] https://sched.co/1ej2S
[2] https://youtu.be/xKJO4kLTHOI?feature=shared

#linux #kernel #damon #ossummit #asv2 #hmsdk
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kernellogger@fosstodon.org

Thorsten Leemhuis (acct. 1/4)

The next instalment of Linus vs. Kent – and Linus seems to be on the edge:

"[…] I'm contemplating just removing entirely from the [ ] mainline tree. Because you show again and again that you have no interest in trying to make mainline work. […]"

For the full discussion, start here: https://lore.kernel.org/all/cphtxla2se4gavql3re5xju7mqxld4rp6q4wbqephb6by5ibfa@5myddcaxerpb/t/#m631c24cd07f5820a4cbff8f25dff1d1a0c3cf2e7 (the quote is from one of the later mails from Linus).

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vbabka

Wonder how many more "strikes" are needed? I think we've seen far too many already. Heck, even the Phoronix commenters seem to think enough is enough.

RE: https://masto.ai/@phoronix/113257686368572007
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Just posted[1] 2024-Q3 DAMON news letter. It contains a number of news regarding new features, more users, repos reorganizations, and conference talks.

[1] https://lore.kernel.org/20241001191425.588219-1-sj@kernel.org

#linux #kernel #damon
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Monthly downloads of DAMON user-space tool (DAMO)[1] from PyPI took about 18 months to surpass 2,000. About only 7 months after that, it exceeded 4,000 today!

[1] https://github.com/damonitor/damo

#linux #kernel #damon #damo
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kernellogger@fosstodon.org

Thorsten Leemhuis (acct. 1/4)

, which allows scheduling policies to be implemented as programs, has been merged for 6.12:

https://git.kernel.org/torvalds/c/88264981f2082248e892a706b2c5004650faac54

See https://lwn.net/Articles/922405/ for a description of what it does and https://lwn.net/Articles/972710/ for the controversy it caused that is the reason why it took so long to land in mainline.

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