From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from invmail4.hynix.com (exvmail4.skhynix.com [166.125.252.92]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 89F64142E73 for ; Fri, 5 Apr 2024 10:13:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=166.125.252.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712312022; cv=none; b=cUKLR/pXXqTG6zJm4lPmjZFLLWyVPF0KUbgrKXZeH1AdOfRA/4kUgTqc1H4C+9m1O+7iPCIL8sC/nF104ne8dAKhW/dELhxGbfOSa8R9D3cxdsYB0AoD7i2I4Tos7wvYKIfb1iS38LWFdeX1DAFhQOQKT9JE8H7wpAaQvHVcANw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712312022; c=relaxed/simple; bh=LwBk8Tg6gmrWwVs84PJrcHAHXc38aGhozruApm71iwg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gZBNyVRHfcWea3HeuHWpHjMEL/dFPokU8qya7/v9v8e5LQuDi46R2k885WcvgsxCBDuzI5IF2epom5zAKLC/yXGqTLsMtaI3QzFDDwfxJmVRJu/slWxTu1yvz/uqzXPl04QQ/K7+sT9vrvliweIal5SjWyMUvfHK4AJ2sYuSHWQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com; spf=pass smtp.mailfrom=sk.com; arc=none smtp.client-ip=166.125.252.92 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=sk.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sk.com X-AuditID: a67dfc5b-d85ff70000001748-5f-660fcecfde3b From: Honggyu Kim To: SeongJae Park Cc: Honggyu Kim , damon@lists.linux.dev, linux-mm@kvack.org, akpm@linux-foundation.org, apopple@nvidia.com, baolin.wang@linux.alibaba.com, dave.jiang@intel.com, hyeongtak.ji@sk.com, kernel_team@skhynix.com, linmiaohe@huawei.com, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, rakie.kim@sk.com, rostedt@goodmis.org, surenb@google.com, yangx.jy@fujitsu.com, ying.huang@intel.com, ziy@nvidia.com, 42.hyeyoo@gmail.com Subject: Re: [RFC PATCH v2 0/7] DAMON based 2-tier memory management for CXL memory Date: Fri, 5 Apr 2024 19:13:12 +0900 Message-ID: <20240405101316.2890-1-honggyu.kim@sk.com> X-Mailer: git-send-email 2.43.0.windows.1 In-Reply-To: <20240326230309.47079-1-sj@kernel.org> References: Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrAIsWRmVeSWpSXmKPExsXC9ZZnke75c/xpBt1tVhYTewws5qxfw2ax 60aIxf+9xxgtnvz/zWpx4mYjm0Xn96UsFpd3zWGzuLfmP6vFkfVnWSw2nz3DbLF4uZrFvo4H TBaHv75hsph8aQGbxYspZxgtTs6azGIx++g9dgchj6Wn37B5bGgCEjtn3WX3aNl3i91jwaZS j5Yjb1k9Fu95yeSxaVUnm8emT5PYPU7M+M3isfOhpceLzTMZPXqb37F5fN4kF8AXxWWTkpqT WZZapG+XwJXx43gHa8FdgYre7++YGhin8nYxcnJICJhI/DvRwA5jf97yiwXEZhNQk7jychIT iC0ioChx7vFF1i5GLg5mgYUsEr3fN4AlhAWCJeae/c8IYrMIqEpMv/EabBCvgJnEsovHWCCG ako83v4TLM4pYCzxZNtZNhBbSIBH4tWG/YwQ9YISJ2c+AatnFpCXaN46mxlkmYTAIXaJk20T mSAGSUocXHGDZQIj/ywkPbOQ9CxgZFrFKJSZV5abmJljopdRmZdZoZecn7uJERhvy2r/RO9g /HQh+BCjAAejEg+vx1y+NCHWxLLiytxDjBIczEoivN0OvGlCvCmJlVWpRfnxRaU5qcWHGKU5 WJTEeY2+lacICaQnlqRmp6YWpBbBZJk4OKUaGD1tPp1nd9rGfHJH6sZfm5MTVj+c/PTzzpxX tkIX7k6xu7i4we3CGo48katL2c49YjS6+pD5v+uN+seTXyf9FhauWnLp1OSkmef+vM076Ztj wjVDKsG1c9oNQVPv/IuhXWz/giuUwiX7XkW72q98HFN0d9W2ZoE3RYGJ0j6TDbc/nnCg1vWg +34lluKMREMt5qLiRABjQ3agswIAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprFIsWRmVeSWpSXmKPExsXCNUNLT/f8Of40g/vL1S0m9hhYzFm/hs1i 140Qi/97jzFaPPn/m9XixM1GNovPz14zW3Q++c5ocXjuSVaLzu9LWSwu75rDZnFvzX9WiyPr z7JYbD57htli8XI1i0PXnrNa7Ot4wGRx+OsbJovJlxawWbyYcobR4uSsySwWs4/eY3cQ81h6 +g2bx4YmILFz1l12j5Z9t9g9Fmwq9Wg58pbVY/Gel0wem1Z1snls+jSJ3ePEjN8sHjsfWnq8 2DyT0aO3+R2bx7fbHh6LX3xg8vi8SS5AIIrLJiU1J7MstUjfLoEr48fxDtaCuwIVvd/fMTUw TuXtYuTkkBAwkfi85RcLiM0moCZx5eUkJhBbREBR4tzji6xdjFwczAILWSR6v28ASwgLBEvM PfufEcRmEVCVmH7jNTuIzStgJrHs4jEWiKGaEo+3/wSLcwoYSzzZdpYNxBYS4JF4tWE/I0S9 oMTJmU/A6pkF5CWat85mnsDIMwtJahaS1AJGplWMIpl5ZbmJmTmmesXZGZV5mRV6yfm5mxiB Mbas9s/EHYxfLrsfYhTgYFTi4fWYy5cmxJpYVlyZe4hRgoNZSYS324E3TYg3JbGyKrUoP76o NCe1+BCjNAeLkjivV3hqgpBAemJJanZqakFqEUyWiYNTqoHRtXLTnQvWpu3XZG6fz58ebOTs 0v/i7L8rem+YPm4MZQ1apjntbrBLr51DdusE/V2N8rtdWW/aVt1ZavFZ59gJEYWnm62zKvZ+ vut93LNKk+1QWpBTXWOAi/6E2/wiizvdLjSt65yRtv2xvxFHh9obr8fXxGdeNePbFKtuOfmY gKzSiu0BqUFKLMUZiYZazEXFiQD3vveyrQIAAA== X-CFilter-Loop: Reflected Hi SeongJae, On Tue, 26 Mar 2024 16:03:09 -0700 SeongJae Park wrote: > On Mon, 25 Mar 2024 15:53:03 -0700 SeongJae Park wrote: > > > On Mon, 25 Mar 2024 21:01:04 +0900 Honggyu Kim wrote: > [...] > > > On Fri, 22 Mar 2024 09:32:23 -0700 SeongJae Park wrote: > > > > On Fri, 22 Mar 2024 18:02:23 +0900 Honggyu Kim wrote: > [...] > > > > > > I would like to hear how you think about this. > > > > So, to summarize my humble opinion, > > > > 1. I like the idea of having two actions. But I'd like to use names other than > > 'promote' and 'demote'. > > 2. I still prefer having a filter for the page granularity access re-check. > > > [...] > > > I will join the DAMON Beer/Coffee/Tea Chat tomorrow as scheduled so I > > > can talk more about this issue. > > > > Looking forward to chatting with you :) > > We met and discussed about this topic in the chat series yesterday. Sharing > the summary for keeping the open discussion. > > Honggyu thankfully accepted my humble suggestions on the last reply. Honggyu > will post the third version of this patchset soon. The patchset will implement > two new DAMOS actions, namely MIGRATE_HOT and MIGRATE_COLD. Those will migrate > the DAMOS target regions to a user-specified NUMA node, but will have different > prioritization score function. As name implies, they will prioritize more hot > regions and cold regions, respectively. It's a late answer but thanks very much for the summary. It was really helpful discussion in the chat series. I'm leaving a message so that anyone can follow for the update. The v3 is posted at https://lore.kernel.org/damon/20240405060858.2818-1-honggyu.kim@sk.com. > Honggyu, please feel free to fix if there is anything wrong or missed. I don't have anything to fix from your summary. > And thanks to Honggyu again for patiently keeping this productive discussion > and their awesome work. I appreciate your persistent support and kind reviews. Thanks, Honggyu > > Thanks, > SJ > > [...]