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From: Steve Bergman <sbergman@rueb.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: Free memory level in 2.6.16?
Date: Thu, 05 Oct 2006 15:10:29 -0500	[thread overview]
Message-ID: <1160079029.29452.19.camel@localhost> (raw)
In-Reply-To: <p73k63ezg3y.fsf@verdi.suse.de>

On Thu, 2006-10-05 at 22:01 +0200, Andi Kleen wrote:

> 
> Normally it keeps some memory free for interrupt handlers which
> cannot free other memory. But 150MB is indeed a lot, especially
> it's only in the ~900MB lowmem zone.
> 
> You could play with /proc/sys/vm/lowmem_reserve_ratio but must
> likely some defaults need tweaking.

Thank you for the reply, Andi.  This kernel is compiled with the .config
from the original FC5 release, which used kernel 2.6.15.  I just ran
"make oldconfig" on it and accepted the defaults.

So it is, I believe, a 4GB/4GB split.  Does that make a difference?

Thanks,
Steve Bergman


WARNING: multiple messages have this Message-ID (diff)
From: Steve Bergman <sbergman@rueb.com>
To: Andi Kleen <ak@suse.de>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: Free memory level in 2.6.16?
Date: Thu, 05 Oct 2006 15:10:29 -0500	[thread overview]
Message-ID: <1160079029.29452.19.camel@localhost> (raw)
In-Reply-To: <p73k63ezg3y.fsf@verdi.suse.de>

On Thu, 2006-10-05 at 22:01 +0200, Andi Kleen wrote:

> 
> Normally it keeps some memory free for interrupt handlers which
> cannot free other memory. But 150MB is indeed a lot, especially
> it's only in the ~900MB lowmem zone.
> 
> You could play with /proc/sys/vm/lowmem_reserve_ratio but must
> likely some defaults need tweaking.

Thank you for the reply, Andi.  This kernel is compiled with the .config
from the original FC5 release, which used kernel 2.6.15.  I just ran
"make oldconfig" on it and accepted the defaults.

So it is, I believe, a 4GB/4GB split.  Does that make a difference?

Thanks,
Steve Bergman

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  reply	other threads:[~2006-10-05 20:09 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-05  7:48 Free memory level in 2.6.16? Steve Bergman
2006-10-05 20:01 ` Andi Kleen
2006-10-05 20:01   ` Andi Kleen
2006-10-05 20:10   ` Steve Bergman [this message]
2006-10-05 20:10     ` Steve Bergman
2006-10-05 20:17     ` Andi Kleen
2006-10-05 20:17       ` Andi Kleen
2006-10-05 20:41   ` Steve Bergman
2006-10-05 20:41     ` Steve Bergman

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