linux-kernel - Re: [PATCH] samples/damon: add parameters for node0 memory usage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250620062951.1572-1-yunjeong.mun@sk.com>
Date: Fri, 20 Jun 2025 15:29:46 +0900
From: Yunjeong Mun <yunjeong.mun@...com>
To: SeongJae Park <sj@...nel.org>
Cc: akpm@...ux-foundation.org,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	kernel_team@...ynix.com,
	Honggyu Kim <honggyu.kim@...com>
Subject: Re: [PATCH] samples/damon: add parameters for node0 memory usage

Hi Andrew, please check the patch below. I missed CC'ing you on the previous
email.

On Thu, 19 Jun 2025 09:46:36 -0700 SeongJae Park <sj@...nel.org> wrote:
> On Thu, 19 Jun 2025 14:03:12 +0900 Yunjeong Mun <yunjeong.mun@...com> wrote:
> 
> > This patch changes the hard-coded quota goal metric values into sysfs
> > knobs: `node0_mem_used_bp` and `node0_mem_free_bp`. These knobs
> > represent the used and free memory ratio of node0 in basis points
> > (bp, where 1 bp = 0.01%). As mentioned in [1], this patch is developed
> > under the assumption that node0 is always the fast-tier in a two-tiers
> > memory setup.
> > 
> > [1] https://lore.kernel.org/linux-mm/20250420194030.75838-8-sj@kernel.org/
> 
> Thank you for this patch.  Please note that this is just a sample code, and
> hence there will be no strict user space compatibility support.
> 

Thanks for reviewing. As you said, this mtier sample module needs further 
development for final version, like automatically detecting memory tiers and
adding some useful knobs. May I continue working on the mtier module? 

> > 
> > Suggested-by: Honggyu Kim <honggyu.kim@...com>
> > Signed-off-by: Yunjeong Mun <yunjeong.mun@...com>
> 
> Reviewed-by: SeongJae Park <sj@...nel.org>
> 
> 
> Thanks,
> SJ
> 
> [...]