linux-kernel - Re: [RFC PATCH] mm/damon: add full LPAE support for memory monitoring above 4GB

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Message-Id: <20250420162706.2844-1-sj@kernel.org>
Date: Sun, 20 Apr 2025 09:27:06 -0700
From: SeongJae Park <sj@...nel.org>
To: zuoze <zuoze1@...wei.com>
Cc: SeongJae Park <sj@...nel.org>,
	akpm@...ux-foundation.org,
	damon@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	wangkefeng.wang@...wei.com
Subject: Re: [RFC PATCH] mm/damon: add full LPAE support for memory monitoring above 4GB

Hello Ze,

On Mon, 14 Apr 2025 09:21:55 +0800 zuoze <zuoze1@...wei.com> wrote:

> 
> 
> 在 2025/4/12 0:35, SeongJae Park 写道:
> > On Fri, 11 Apr 2025 14:30:40 +0800 zuoze <zuoze1@...wei.com> wrote:
> > 
> >> 在 2025/4/11 6:25, SeongJae Park 写道:
> > [...]
> >>> So I still don't anticipate big problems with my proposed approach.  But only
> >>> prototyping and testing would let us know more truth.  If you don't mind, I
> >>> will quickly write and share a prototype of my idea so that you could test.
> >>>
> >>
> >> Sounds good! Please share the prototype when ready - happy to test and
> >> help improve it.
> > 
> > Thanks, I will share the prototype as soon as be ready. I expect up to a few
> > weeks.
> > 
> 
> Got it! Excited to see the prototype. Let me know if you need anything
> in the meantime.

I posted the RFC patch series[1] a few days ago.  I also just implemented[2]
and pushed the support of it on DAMON user-space tool.  Please let me know if
you find any concern on those.

[1] https://lore.kernel.org/20250416042551.158131-1-sj@kernel.org
[2] https://github.com/damonitor/damo/commit/5848e3a516e3b10e62c4ad7ebf0e444d7be09f6b


Thanks,
SJ

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