linux-kernel - Re: [RFC PATCH 0/2] mm: multi-gen LRU: per-process heatmaps

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Message-ID: <20250109114847.539237-1-tianmuyang@huawei.com>
Date: Thu, 9 Jan 2025 19:48:47 +0800
From: Muyang Tian <tianmuyang@...wei.com>
To: <yuanchu@...gle.com>
CC: <Michael@...haellarabel.com>, <akpm@...ux-foundation.org>,
	<bpf@...r.kernel.org>, <corbet@....net>, <linux-kernel@...r.kernel.org>,
	<linux-mm@...ck.org>, <liuxin350@...wei.com>, <liwei883@...wei.com>,
	<tianmuyang@...wei.com>, <wuchangye@...wei.com>, <xiesongyang@...wei.com>,
	<yanan@...wei.com>, <yuzhao@...gle.com>, <zhangmingyi5@...wei.com>
Subject: Re: [RFC PATCH 0/2] mm: multi-gen LRU: per-process heatmaps

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!