Subject: Re: User space out of memory approach
From: Thomas Gleixner <tglx@linutronix.de>
Reply-To: tglx@linutronix.de
To: Edjard Souza Mota <edjard@gmail.com>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com>,
       Mauricio Lin <mauriciolin@gmail.com>,
       LKML <linux-kernel@vger.kernel.org>, Andrew Morton <akpm@osdl.org>,
       Andrea Arcangeli <andrea@suse.de>
In-Reply-To: <4d6522b905011102003cddca9@mail.gmail.com>
References: <3f250c71050110134337c08ef0@mail.gmail.com>
	 <20050110192012.GA18531@logos.cnet>
	 <4d6522b9050110144017d0c075@mail.gmail.com>
	 <20050110200514.GA18796@logos.cnet>
	 <1105403747.17853.48.camel@tglx.tec.linutronix.de>
	 <4d6522b90501101803523eea79@mail.gmail.com>
	 <1105433093.17853.78.camel@tglx.tec.linutronix.de>
	 <4d6522b905011101202918f361@mail.gmail.com>
	 <1105435846.17853.85.camel@tglx.tec.linutronix.de>
	 <4d6522b905011102003cddca9@mail.gmail.com>
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Date: Tue, 11 Jan 2005 11:36:37 +0100
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On Tue, 2005-01-11 at 12:00 +0200, Edjard Souza Mota wrote:
> Hi,
> 
> > > > > 1) ranking for the most likely culprits only starts when memory consumption
> > > > >     gets close to the red zone (for example 98% or something like that).
> > 
> > We do the ranking only in the oom situation, so what's your point ?
> 
> The point is that kernel doesn't need to keep watching the memory space
> every time a process needs memory. Only when memory is close this red zone.

Oh, I see. The mechanism which is doing memory management must not be
aware of the resources which it is managing ? Am I missing a point ?

tglx


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