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b=VkWDHalKkgkCcv/OqNI2Z0TAjZ6fZxfxYkhSCO2hG0hm3j9nokhRXjqTgTFKGezxB ACdnGqy7889fNnhqDGPOSkKaeAq9H+hWe1rkaBlnM/ZLZPfcNaK5bTvnKWOUuStdtw rZYVzHOeHVyekj6+ksdm9dr/h/tSopSH4goVG6yK3yv+EjWryy+2vGIkPq2hFB5sJ4 zUSAF8x5UGCImqY8wZ8+aqQv1fFzxL/T/HUBtKRtEG6spT763prF0PjoYxzxN/YIiD Mgmp2iC6JxIyew/4w+6YC6pp9HM0sb9MN0n4wn6G2wGFlVxiCC7fpAJ9e0oZmxTwLU qb52K8nLzYjcg== From: SeongJae Park To: SeongJae Park Cc: Andrew Morton , Jonathan Corbet , damon@lists.linux.dev, kernel-team@meta.com, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH 0/7] mm/damon: auto-tune DAMOS for NUMA setups including tiered memory Date: Sun, 20 Apr 2025 12:47:54 -0700 Message-Id: <20250420194754.76186-1-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250420194030.75838-1-sj@kernel.org> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: D343C100003 X-Stat-Signature: iq8nainoa4m5o6zmbb19amad8gaq59jh X-HE-Tag: 1745178478-796620 X-HE-Meta: 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, 20 Apr 2025 12:40:23 -0700 SeongJae Park wrote: > Utilizing DAMON for memory tiering usually requires manual tuning and/or > tedious controls. Let it self-tune hotness and coldness thresholds for > promotion and demotion aiming high utilization of high memory tiers, by > introducing new DAMOS quota goal metrics representing the used and the > free memory ratios of specific NUMA nodes. And introduce a sample DAMON > module that demonstrates how the new feature can be used for memory > tiering use cases. [...] > References > ========== > > [1] https://lore.kernel.org/20231112195602.61525-1-sj@kernel.org/ > [2] https://lore.kernel.org/20250303221726.484227-1-sj@kernel.org > [3] https://github.com/facebookresearch/DCPerf/blob/main/packages/tao_bench/README.md Forgot adding below, sorry. Revision History ================ Changes from RFC (https://lore.kernel.org/20250320053937.57734-1-sj@kernel.org) - Wordsmith commit messages - Add documentations [...]