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From: Arjan van de Ven <arjan@infradead.org>
To: Al Boldi <a1426z@gawab.com>
Cc: Willy Tarreau <willy@w.ods.org>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	barryn@pobox.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] strict VM overcommit accounting for 2.4.32/2.4.33-pre1
Date: Sat, 31 Dec 2005 15:26:18 +0100	[thread overview]
Message-ID: <1136039178.2901.25.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <200512311702.20525.a1426z@gawab.com>

On Sat, 2005-12-31 at 17:02 +0300, Al Boldi wrote:

> Shouldn't it be possible to disable overcommit completely, thus giving kswapd 
> a break from running wild trying to find something to swap/page, which is 
> the reason why the system gets unstable going over 95% in your example.

shared mappings make this impractical. To disable overcommit completely,
each process would need to account for all its own shared libraries, eg
each process gets glibc added etc. You'll find that on any
non-extremely-stripped system you then end up with much more memory
needed than you have ram.



  parent reply	other threads:[~2005-12-31 14:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-30 20:06 Al Boldi
2005-12-30 20:18 ` Barry K. Nathan
2005-12-30 20:51   ` Al Boldi
2005-12-30 21:44     ` Willy TARREAU
2005-12-31  0:55 ` Alan Cox
2005-12-31  4:59   ` Al Boldi
2005-12-31  7:38     ` Willy Tarreau
2005-12-31 14:02       ` Al Boldi
2005-12-31 14:18         ` Willy Tarreau
2005-12-31 14:26         ` Arjan van de Ven [this message]
2005-12-31 14:58           ` Willy Tarreau
2005-12-31 15:17             ` Arjan van de Ven
2005-12-31 17:36           ` Al Boldi
2006-01-01  9:12             ` Arjan van de Ven
  -- strict thread matches above, loose matches on Subject: below --
2005-12-30  7:44 Barry K. Nathan
2005-12-30 17:48 ` Willy Tarreau
2005-12-30 18:17   ` Arjan van de Ven
2005-12-30 18:33     ` Willy Tarreau
2005-12-30 19:37       ` Barry K. Nathan
2005-12-30 20:45         ` Willy Tarreau

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