linux-kernel - Re: [PATCH v2] mm: Override mTHP "enabled" defaults at kernel cmdline

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Message-ID: <CAGsJ_4yV6uqwiRsy-Je_WysgUuN2s6MC6n3az9aP_C+3ZKS+mA@mail.gmail.com>
Date: Fri, 9 Aug 2024 16:52:10 +0800
From: Barry Song <baohua@...nel.org>
To: Ryan Roberts <ryan.roberts@....com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, Jonathan Corbet <corbet@....net>, 
	David Hildenbrand <david@...hat.com>, Lance Yang <ioworker0@...il.com>, 
	Baolin Wang <baolin.wang@...ux.alibaba.com>, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org
Subject: Re: [PATCH v2] mm: Override mTHP "enabled" defaults at kernel cmdline

On Thu, Aug 8, 2024 at 6:17 PM Ryan Roberts <ryan.roberts@....com> wrote:
>
> Add thp_anon= cmdline parameter to allow specifying the default
> enablement of each supported anon THP size. The parameter accepts the
> following format and can be provided multiple times to configure each
> size:
>
> thp_anon=<size>[KMG]:<value>
>
> See Documentation/admin-guide/mm/transhuge.rst for more details.
>
> Configuring the defaults at boot time is useful to allow early user
> space to take advantage of mTHP before its been configured through
> sysfs.
>
> Signed-off-by: Ryan Roberts <ryan.roberts@....com>

Tested-by: Barry Song <baohua@...nel.org>
Reviewed-by: Barry Song <baohua@...nel.org>

Thanks
Barry