From: Shentino <shentino@gmail.com>
To: Rik van Riel <riel@redhat.com>
Cc: Ben Hutchings <ben@decadent.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Zdenek Kaspar <zkaspar82@gmail.com>,
linux-mm@kvack.org
Subject: Re: Consider for longterm kernels: mm: avoid swapping out with swappiness==0
Date: Sun, 9 Sep 2012 11:03:55 -0700 [thread overview]
Message-ID: <CAGDaZ_pLTR3FZy4-txF7ZhMy60xp_BB=-JORd8OhcGcJOG6YCw@mail.gmail.com> (raw)
In-Reply-To: <504CCECF.9020104@redhat.com>
On Sun, Sep 9, 2012 at 10:15 AM, Rik van Riel <riel@redhat.com> wrote:
> On 09/09/2012 12:57 PM, Ben Hutchings wrote:
>>
>> On Sat, 2012-08-25 at 16:56 +0200, Zdenek Kaspar wrote:
>>>
>>> Hi Greg,
>>>
>>>
>>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=fe35004fbf9eaf67482b074a2e032abb9c89b1dd
>>>
>>> In short: this patch seems beneficial for users trying to avoid memory
>>> swapping at all costs but they want to keep swap for emergency reasons.
>>>
>>> More details: https://lkml.org/lkml/2012/3/2/320
>>>
>>> Its included in 3.5, so could this be considered for -longterm kernels ?
>>
>>
>> Andrew, Rik, does this seem appropriate for longterm?
>
>
> Yes, absolutely. Default behaviour is not changed at all, and
> the patch makes swappiness=0 do what people seem to expect it
> to do.
Just curious, but what theoretically would happen if someone were to
want to set swappiness to 200 or something?
Should it be sorta like vfs_cache_pressure?
> --
> All rights reversed
>
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next prev parent reply other threads:[~2012-09-09 18:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5038E7AA.5030107@gmail.com>
2012-09-09 16:57 ` Ben Hutchings
2012-09-09 17:15 ` Rik van Riel
2012-09-09 18:03 ` Shentino [this message]
2012-09-10 13:36 ` Cong Wang
2012-09-10 17:07 ` Shentino
2012-09-10 17:40 ` Shentino
2012-09-09 18:27 ` Ben Hutchings
2012-09-09 20:34 ` Willy Tarreau
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