DAMON Quaterly News Letter (2024 Q1)

[SeongJae Park]

Hello DAMON community,


Already the first quater of 2024 has passed.  Meanwhile, there were some
exciting news on DAMON community.  Let me share my humble summary of those.

Januarry 2024
=============

Memory management subsystem pull request[1] for Linux v6.8-rc1 that contains
aim-oriented user-feedback driven DAMOS aggressiveness auto-tuning has merged.

SK Hynix shared[2] their DAMOS-based tiered memory management test results
showing 4-17% performance slowdown reduction, with patches for that.

LSF/MM/BPF 2024 topic proposal for DAMON has posted[3].

February 2024
=============

DAMON in Amazon Linux 5.10.y kernel[4] has updated to that of v6.7 Linux
kernel.

DAMON talk for OSSummit NA 2024 has been accepted and scheduled[5].

DAMO v2.2.2 is released with a new command, 'replay'[6].  It is aimed to help
reproducing the real-world memory access pattern for analysis and benchmarks.

Yet another academic paper[7] exploring DAMON for tiered memory management will
be presented at EuroSys 2024[8].

March 2024
==========

DAMO v2.2.4 is released with a new feature for access pattern-based
profiling[9].  Users can know which code is making their program's memory usage
unexpectedly high, or which code is intensively accessing memory, and optimize.

DAMON maintainer received the invitation for LSF/MM/BPF 2024.

Memory management subsystem pull request[10] for Linux 6.9-rc1 that contains
aim-oriented self-feedback driven DAMOS aggressiveness auto-tuning has merged.

References
==========

[1] https://lore.kernel.org/linux-mm/20240108155039.fd2798712a2a93a108b710ce@xxxxxxxxxxxxxxxxxxxx/
[2] https://lore.kernel.org/damon/20240115045253.1775-1-honggyu.kim@xxxxxx/
[3] https://lore.kernel.org/linux-mm/20240129204749.68549-1-sj@xxxxxxxxxx/
[4] https://github.com/amazonlinux/linux/tree/amazon-5.10.y/master/mm/damon
[5] https://sched.co/1aBOg
[6] https://github.com/awslabs/damo/blob/v2.2.2/release_note#L5
[7] https://pasalabs.org/papers/2024/Eurosys24_M3_Camera_Ready.pdf
[8] https://2024.eurosys.org/
[9] https://github.com/awslabs/damo/blob/v2.2.4/USAGE.md#profile
[10] https://lore.kernel.org/all/20240313200532.34e4cff216acd3db8def4637@xxxxxxxxxxxxxxxxxxxx/


To recap, the long-awaited DAMOS auto-tuning feature has merged.  More people
from the academy and the industry explored and contributed on DAMON.  DAMON
user-space tool got more useful features.  We will have yet another DAMON
presentation and discussion at OSSummit NA and LSF/MM/BPF.

It was a grateful quarter.  Looking forward to next news of the second quarter.
Happy second quarter and hacking, community!


Thanks,
SJ