From: Mike Kravetz <mike.kravetz@oracle.com>
To: Joel Savitz <jsavitz@redhat.com>, linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Rafael Aquini <aquini@redhat.com>,
linux-mm@kvack.org
Subject: Re: [PATCH] mm/page_alloc: increase default min_free_kbytes bound
Date: Thu, 20 Feb 2020 17:27:28 -0800 [thread overview]
Message-ID: <bfada5d3-23a1-5cec-3cc2-6a7a015c4dcd@oracle.com> (raw)
In-Reply-To: <20200220150103.5183-1-jsavitz@redhat.com>
On 2/20/20 7:01 AM, Joel Savitz wrote:
>
> Further work to make the calculation of vm.min_free_kbytes more
> consistent throughout the kernel would be desirable.
>
> As an example of the inconsistency of the current method, this value is
> recalculated by init_per_zone_wmark_min() in the case of memory hotplug
> which will override the value set by set_recommended_min_free_kbytes()
> called during khugepaged initialization even if khugepaged remains
> enabled, however an on/off toggle of khugepaged will then recalculate
> and set the value via set_recommended_min_free_kbytes().
I took a shot at fixing some of those inconsistencies.
https://lore.kernel.org/linux-mm/20200210190121.10670-1-mike.kravetz@oracle.com/
--
Mike Kravetz
next prev parent reply other threads:[~2020-02-21 1:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-20 15:01 Joel Savitz
2020-02-21 0:40 ` Andrew Morton
2020-02-21 1:27 ` Mike Kravetz [this message]
2020-02-21 1:53 ` John Hubbard
2020-02-27 12:45 ` Vlastimil Babka
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