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b=bu1IJvQ9VVWqhvPIcIUUDwnnsAAuIZsq79OaI+ekyVJsAXxd/qlHUZ1fL5WSfuWZG rRuBUFMXfP6e0wo+m7jIA82OeU4QxtRZNxzcHl8hVzi+pHwoe6hmtsIw6fZ/j6W0zk 00qrwSzv0hD7P/pallol9lwIHKqRvq+4RJ6BPOtzJz0MrEC3abj3x1VdtYmzlZJb0r lLDa6VDr9Nl3noLR+w0wQS6hQrxYV0NjufY2n8WiS5+BfRhPd9IK6R8k0/VI6vGsYm psRAErL585HWU/01Hdw4mkhNxaFQXwRmG4SSuPxojUSyl2qbcOPcXkX712Rvp4fXiM ra2Nlf9HdGNWA== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: DAMON Quaterly News Letter (2024 Q1) Date: Tue, 2 Apr 2024 12:12:24 -0700 Message-Id: <20240402191224.92305-1-sj@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: B1B63100014 X-Rspam-User: X-Stat-Signature: khjpyejhbyct81iimj4cir48d1nw4a1a X-Rspamd-Server: rspam03 X-HE-Tag: 1712085147-618879 X-HE-Meta: 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 lqEX7UkH j5NkF5/bW0dhj+t9bF6akBkx/PQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.030350, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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@linux-foundation.org/ [2] https://lore.kernel.org/damon/20240115045253.1775-1-honggyu.kim@sk.com/ [3] https://lore.kernel.org/linux-mm/20240129204749.68549-1-sj@kernel.org/ [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@linux-foundation.org/ 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