From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga04-in.huawei.com (szxga04-in.huawei.com [45.249.212.190]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2E4C2215789; Thu, 9 Jan 2025 11:48:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.190 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736423329; cv=none; b=sc4gTaVe4Lg8uBYPijU9Aw3hVZM1jJvuO/A7kQjE35cgEc7FwFu6xD3/nYRzBYUZT8RpJQI4kJdRbdHaal8r56eXO61XAEUvKYwWWQTqRbaSj+VeyReeRfcuDLjGJfdFc/4OyYgJJN7mX4MyHYadnu64N6W4Sbn34i8/XB1ZkUc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736423329; c=relaxed/simple; bh=YCEJn8ABQi2ZGK3gViqw+VgqmIlvYqn1J34SpfSMKj8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=n7UGRjjBdr6WvmV5WcNhPB4IbDLQ+DUquIEmqRmFlYQ0hVISdQIv8+HkhVDXy7boh1PPu5k6HqZtuwm0MJWoA89zLH0DoesZnBes4z0mj03dcncs2EhuoIzDkPwXP+LCSbl7ItOMv40bY/Dgz+wmLADm/NEh26mi9O+e/bT2MNY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.190 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.163.17]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4YTNJj4RTQz2DkMC; Thu, 9 Jan 2025 19:45:41 +0800 (CST) Received: from dggpemf500014.china.huawei.com (unknown [7.185.36.43]) by mail.maildlp.com (Postfix) with ESMTPS id 6066F1A0188; Thu, 9 Jan 2025 19:48:44 +0800 (CST) Received: from huawei.com (10.175.101.6) by dggpemf500014.china.huawei.com (7.185.36.43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 9 Jan 2025 19:48:43 +0800 From: Muyang Tian To: CC: , , , , , , , , , , , , , Subject: Re: [RFC PATCH 0/2] mm: multi-gen LRU: per-process heatmaps Date: Thu, 9 Jan 2025 19:48:47 +0800 Message-ID: <20250109114847.539237-1-tianmuyang@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To dggpemf500014.china.huawei.com (7.185.36.43) Hi Yuanchu, I'm working on observability and the programmable page generation policy of MGLRU based on eBPF, using a similar approach to yours. I'd like to know if there is any related work, such as the application of eBPF in MGLRU? Also, this RFC provides a user space interface to call run_aging(), which is called periodically in the demo. Do you plan to optimize this, perhaps by calling run_aging() based on page access observation results? Thanks!