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Maintaining DAMON (https://damonitor.github.io). All opinions are my own.
sj

sj

Edited 2 days ago
We are looking for DAMON recipes that I could share on upcoming OSSummit EU, or (hopefully) DAMON microconf at LPC'25: https://lore.kernel.org/20240724222119.58477-1-sj@kernel.org

#linux #kernel #damon #ossummit #linuxplumbers
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sj

Edited 4 days ago
Memory Management subsystem pull request for Linux v6.11-rc1 is posted[1] with DAMON changes for CXL memory tiering[2], documentation[3] of a mailing tool for newcomers (HacKerMaiL), and minor fixups.

[1] https://lore.kernel.org/20240721145415.fbeb01a853962ef91334f3d1@linux-foundation.org
[2] https://lore.kernel.org/20240614030010.751-1-honggyu.kim@sk.com
[3] https://lore.kernel.org/20240621163626.74815-1-sj@kernel.org

#linux #kernel #damon #hkml
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sj

DAMON topic for Linux Kernel Memory Management Microconference at LPC'24, titled "DAMON: Long-term Plans for Kernel That {Just Works,Extensible}" has been accepted[1].

[1] https://lpc.events/event/18/contributions/1768/

#linux #kernel #damon
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sj

DAMON user-space tool, damo, v2.4.3[1] is now available. The version supports showing access pattern, memory footprints, and hotspot functions all at once on live. An animated-gif for that is available[2].

[1] https://github.com/awslabs/damo/blob/v2.4.3/release_note
[2] https://github.com/awslabs/damo/blob/v2.4.3/README.md#holistic-memory-usage-monitoring

#linux #kernel #damon #damo
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I created a logo for DAMON using DAMON, just for fun.

You could also create some for yourself. For detailed instructions: https://sjp38.github.io/post/damon_heatmap_logo/

#linux #kernel #damon #damo #masim
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vbabka

Vlastimil Babka

Congrats to my colleague @ggherdov to his first LWN guest article blobcatamused

RE: https://fosstodon.org/@LWN/112768427133634587
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ATC'24 also published two DAMON-citing papers at the same time. The first one[1] proposes a way to improve monitoring accuracy of DAMON, while the second one[2] mentions DAMON can be useful for extensible memory management (mm-ext? ;) ).

[1] Telescope: Telemetry for Gargantuan Memory Footprint Applications, https://www.usenix.org/conference/atc24/presentation/nair
[2] FBMM: Making Memory Management Extensible With Filesystems, https://www.usenix.org/conference/atc24/presentation/tabatabai

#linux #kernel #damon #atc #mm-ext

RE: https://social.kernel.org/objects/92b159a6-48c2-4008-bffd-49c5f783f9ca
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sj

Edited 15 days ago
A couple of OSDI'24 papers[1,2] for memory tiering that references and exploring DAMON as a part of them are available now.

[1] https://www.usenix.org/conference/osdi24/presentation/xiang
[2] https://www.usenix.org/conference/osdi24/presentation/zhong-yuhong

#linux #kernel #damon #osdi #cxl
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sj

DAMO v2.4.2 [1] is out. It makes the report more holistic with hotspot functions in addition to the heatmap, wss, and memory footprints. Refer to USAGE[2] for details and an example report.

[1] https://github.com/awslabs/damo/blob/v2.4.2/release_note#L4
[2] https://github.com/awslabs/damo/blob/v2.4.2/USAGE.md#holistic

#linux #kernel #damon #damo
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Edited 25 days ago
I just posted DAMON quaterly news letter for 2024-Q2.

Highlights of highlights: DAMON gained a feature for CXL-based tiered memory management. HacKerMaiL (hkml), a simple mailing tool that DAMON maintainer is developing, made an official commitment to support DAMON community.

https://lore.kernel.org/20240701212244.52288-1-sj@kernel.org

#linux #kernel #damon
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As the DAMON maintainer and an AWS employee, I _strive_ to be the best employer of DAMON community. Assisting onboarding of new members is an important part of it.

I'm hence marking[1] 'HacKerMaiL' as a mailing tool for DAMON community that the maintainer is committed to support.

[1] https://lore.kernel.org/20240620220337.76942-2-sj@kernel.org

#linux #kernel #damon #hkml #hackermail
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LWN@fosstodon.org

LWN.net

[$] How kernel CVE numbers are assigned

It has been four months since Greg Kroah-Hartman and MITRE announced that the Linux kernel project had become its own CVE Numbering Authority (CNA). Since then, the Linux CNA Team [...]

https://lwn.net/Articles/978711/

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Edited 1 month ago
Hackermail v1.1.0[1] is just pushed with a number of features. Now it can be used for reading general patch files or commits with the built-in lore/commits-explorer. Also most hkml features are integrated into the interactive interface. Read the documentation[2] for more details.

[1] https://github.com/sjp38/hackermail/blob/v1.1.0/release_note#L3
[2] https://github.com/sjp38/hackermail/blob/v1.1.0/USAGE.md#interactive-viewer

#hkml #hackermail
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Edited 1 month ago
SK hynix' patch series "DAMON based tiered memory management for CXL memory" has merged[1] into -mm tree! Huge appreciate to great works from the team!

[1] https://lore.kernel.org/all/20240614185328.BA2C1C2BD10@smtp.kernel.org/

#linux #kernel #damon #cxl #tiered-memory
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sj

The DAMON talk for the open source summit in Europe 2024 has been accepted and scheduled: https://sched.co/1ej2S. I am Looking forward to meeting folks in Vienna!

#linux #kernel #damon #ossumit
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@vbabka What speculation!

RE: https://social.kernel.org/objects/95e5a43c-ea88-4491-87f0-35b3c493000c
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LWN@fosstodon.org

LWN.net

Extensible scheduler class to be merged for 6.11

https://lwn.net/Articles/978007/

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Edited 1 month ago
I just pushed Hackermail v1.0.9[1]. The version adds more features for its interactive list/viewer, including complete thread listing, git commit ids handling, and lore links opening.

[1] https://github.com/sjp38/hackermail/blob/v1.0.9/release_note#L3

#hkml #hackermail
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linuxplumbersconf@mastodon.social

Linux Plumbers Conference

Happy June! Cannot believe we almost finished half of 2024! This also means some LPC CFP deadlines are right around the corner. If you want to share something at LPC 2024, don't wait too long! Please checkout our CFP page for more details about various deadlines: https://lpc.events/event/18/abstracts/ .

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Today I learned LSFMM+BPF 2024 videos including that for DAMON session[1] are now available on YouTube as a playlist[2].

[1] https://youtu.be/ywmwXq01ySA?feature=shared
[2] https://www.youtube.com/watch?v=ygNW_Z-fChM&list=PLbzoR-pLrL6oj1rVTXLnV7cOuetvjKn9q

#linux #kernel #damon #lsfmm
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