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From: Dave Hansen <dave.hansen@intel.com>
To: Baolin Wang <baolin.wang@linux.alibaba.com>, akpm@linux-foundation.org
Cc: ying.huang@intel.com, dave.hansen@linux.intel.com,
	ziy@nvidia.com, osalvador@suse.de, shy828301@gmail.com,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] mm: migrate: Add new node demotion strategy
Date: Thu, 4 Nov 2021 08:18:02 -0700	[thread overview]
Message-ID: <665cb882-6dbc-335f-1435-e52659d7ee58@intel.com> (raw)
In-Reply-To: <c02bcbc04faa7a2c852534e9cd58a91c44494657.1636016609.git.baolin.wang@linux.alibaba.com>

On 11/4/21 2:13 AM, Baolin Wang wrote:
> +What:		/sys/kernel/mm/numa/demotion_mode
> +Date:		November 2021
> +Contact:	Linux memory management mailing list <linux-mm@kvack.org>
> +Description:	Set the demotion mode when enabling demoting pages during reclaim

I don't think we need a tunable for this.  The existing behavior is just
stupid for your hardware and can be replaced.  Let's also try to do it
with the existing node_demotion[] data structure before we go adding more.

  reply	other threads:[~2021-11-04 15:18 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-04  9:13 [RFC PATCH] mm: migrate: Add new node demotion strategy Baolin Wang
2021-11-04 15:18 ` Dave Hansen [this message]
2021-11-05  2:51   ` Huang, Ying
2021-11-05 15:47     ` Dave Hansen
2021-11-07  9:33       ` Baolin Wang
2021-11-07 15:20         ` Dave Hansen
2021-11-08  6:38           ` Baolin Wang
2021-11-08  6:48             ` Huang, Ying
2021-11-08  7:07               ` Baolin Wang
2021-11-08  8:12                 ` Huang, Ying
2021-11-08  8:43                   ` Baolin Wang
2021-11-08  2:12       ` Huang, Ying

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