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Message-ID: <f27af2f9-aabb-4627-8d11-b3c1296824c2@o21g2000vbl.googlegroups.com>
Date: Mon, 5 Oct 2009 13:05:07 -0700 (PDT)
From: Daniel J Blueman <daniel.blueman@...il.com>
To: Jeff Chua <jeff.chua.linux@...il.com>
Cc: Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.32-rc3: low mem - only 378MB on x86_32 with 64GB. Why?
On Oct 5, 5:10 pm, Jeff Chua <jeff.chua.li...@...il.com> wrote:
> I've 3 systems with 4GB, 16GB and 64GB all running 32bit with these set:
[snip]
> Question is ... is there anyway to increase "low mem" without resorting to
> migrating to 64bit? (Look... it only has 378MB total low mem vs 850MB on
> the 4GB system). I've oracle installed on the 64GB system and it keeps
> getting OOMs!
Whilst linux may be able to address all 64GB of memory (running 32 or
64-bit), every 32-bit process will be limited to ~3GB virtual address
space, which may be the limiting factor for your out-of-memory issue
with Oracle. The only solution is to run 64-bit Oracle, alas.
Daniel
--
Daniel J Blueman
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