From: Andi Kleen <ak@suse.de>
To: Adam Shand <larry@spack.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: What is the truth about Linux 2.4's RAM limitations?
Date: 09 Jul 2001 23:03:11 +0200 [thread overview]
Message-ID: <oup66d1g6i8.fsf@pigdrop.muc.suse.de> (raw)
In-Reply-To: <Pine.LNX.4.32.0107091250170.25061-100000@maus.spack.org.suse.lists.linux.kernel>
In-Reply-To: Adam Shand's message of "9 Jul 2001 22:05:47 +0200"
Adam Shand <larry@spack.org> writes:
>
> * And, what (if any) paramaters can effect this (recompiling the app
> etc)?
The kernel parameter is a constant called __PAGE_OFFSET which you can set.
You also need to edit arch/i386/vmlinux.lds
The reason why your simulation stopped at 2.3GB is likely that the malloc
allocation hit the shared libraries (check with /proc/<pid>/maps). Ways
around that are telling malloc to use mmap more aggressively (see the
malloc documentation in info libc) or moving the shared libraries up
by changing a kernel constant called TASK_UNMAPPED_BASE.
-Andi
next parent reply other threads:[~2001-07-09 21:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.32.0107091250170.25061-100000@maus.spack.org.suse.lists.linux.kernel>
2001-07-09 21:03 ` Andi Kleen [this message]
2001-07-11 4:31 What is the truth about Linux 2.4's RAM limitations? alad
-- strict thread matches above, loose matches on Subject: below --
2001-07-10 21:49 Jesse Pollard
2001-07-10 22:07 ` Jonathan Lundell
2001-07-10 18:38 Jesse Pollard
2001-07-10 19:14 ` Mark H. Wood
2001-07-10 18:12 Jesse Pollard
2001-07-10 18:22 ` Jonathan Lundell
2001-07-10 18:28 ` Brian Gerst
2001-07-10 18:43 ` Chris Wedgwood
2001-07-10 19:35 ` Brian Gerst
2001-07-09 21:29 Jesse Pollard
2001-07-10 17:01 ` Timur Tabi
2001-07-09 20:01 Adam Shand
2001-07-09 21:15 ` Brian Gerst
2001-07-09 21:18 ` Rik van Riel
2001-07-09 22:17 ` Matti Aarnio
2001-07-10 13:49 ` Chris Wedgwood
2001-07-10 17:03 ` Timur Tabi
2001-07-10 17:35 ` Richard B. Johnson
2001-07-10 18:01 ` Timur Tabi
2001-07-10 18:08 ` Jonathan Lundell
2001-07-10 18:45 ` Richard B. Johnson
2001-07-10 19:26 ` Jonathan Lundell
2001-07-10 23:56 ` Jesse Pollard
2001-07-10 20:19 ` Malcolm Beattie
2001-07-10 3:01 ` jlnance
2001-07-10 3:29 ` Michael Bacarella
2001-07-16 8:37 ` Ingo Oeser
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