I feel noMMU might give better performance.
I suppose this greatly depends on the chip available and the application
you want to do.
Regarding the processor chip, with most brands the MMU and non-MMU chips
will differ in much more than just the MMU-ness: different clock
frequency, different
[mailto:uclinux-dev-boun...@uclinux.org]
On Behalf Of Michael Schnell
Sent: Monday, September 07, 2009 10:06 AM
To: uClinux development list
Subject: Re: [uClinux-dev] multiple arch with MMU/noMMU
I feel noMMU might give better performance.
I suppose this greatly depends on the chip available
Goran Bilski wrote:
Hi,
MicroBlaze soft processor only uses physical addresses on the data cache.
For the instruction cache, we use virtual addresses and to avoid aliasing
problems we use process ID as part of the cache tag.
This also has the benefit of avoiding flushing of the instruction
Hi Dave(s),
David McCullough wrote:
Jivin Dave Rensberger lays it down ...
uClinux-dist supports anything (MMU and !MMU).
The kernel in the latest uClinux-dist's is as close to the kernel.org
eleases as possible.
uClinux-dist even lets you add your own kernel easily. For example,
take the
Hi Tom, Jamie,
Jamie Lokier wrote:
tom gogh wrote:
As I mentioned in my mail to Greg, I want to check how MMU and noMMU
can make difference.
Good idea, especially on the same hardware. The results will be
interesting.
I feel noMMU might give better performance.
I can't recall if this
Hi,
I´m trying to setup uClinux on my LPC2294 board, but I have a problem
with the gnu-tools. When I start making with 'make menuconfig' in the
folder uClinux-dist the following error occurs:
I followed the instructions in the document Getting started uClinux with
LPC22xx by Philips but it
Hello everyone,
I am facing classic dilemma of which distribution to go for.
I have powerpc with mmu, MIPS, may be in future some other processor like ARM
and I want to keep my code portable to multiple arch.
Which means, if I use MMU/noMMU in both cases, I need to do less rework or no
Jivin tom gogh lays it down ...
Hello everyone,
I am facing classic dilemma of which distribution to go for.
I have powerpc with mmu, MIPS, may be in future some other processor like ARM
and I want to keep my code portable to multiple arch.
Which means, if I use MMU/noMMU in both
Hi Tom,
tom gogh wrote:
I am facing classic dilemma of which distribution to go for.
I have powerpc with mmu, MIPS, may be in future some other processor like ARM
and I want to keep my code portable to multiple arch.
Which means, if I use MMU/noMMU in both cases, I need to do less
tom gogh wrote:
Which means, if I use MMU/noMMU in both cases, I need to do less rework or
no rework and easy software maintanability.
Are you targeting userland software or Kernel Work ?
Normal userland software should not be greatly affected by the MMU.
A common problem here is fork()
/09, David McCullough david_mccullo...@securecomputing.com
wrote:
From: David McCullough david_mccullo...@securecomputing.com
Subject: Re: [uClinux-dev] multiple arch with MMU/noMMU
To: uClinux development list uclinux-dev@uclinux.org
Date: Friday, September 4, 2009, 3:17 AM
Jivin tom gogh
great Linux distribution to work on.
Regards,
Anand
--- On Fri, 9/4/09, Greg Ungerer g...@snapgear.com wrote:
From: Greg Ungerer g...@snapgear.com
Subject: Re: [uClinux-dev] multiple arch with MMU/noMMU
To: uClinux development list uclinux-dev@uclinux.org
Date: Friday, September 4, 2009, 3:20 AM
--- On Fri, 9/4/09, Michael Schnell mschn...@lumino.de wrote:
From: Michael Schnell mschn...@lumino.de
Subject: Re: [uClinux-dev] multiple arch with MMU/noMMU
To: uClinux development list uclinux-dev@uclinux.org
Date: Friday, September 4, 2009, 5:17 AM
tom gogh wrote:
Which means, if I use
uClinux-dist supports anything (MMU and !MMU).
The kernel in the latest uClinux-dist's is as close to the kernel.org
eleases as possible.
uClinux-dist even lets you add your own kernel easily. For example,
take the penguinppc kernel, extract it to a directory at in the dists top
level dir
Jivin Dave Rensberger lays it down ...
uClinux-dist supports anything (MMU and !MMU).
The kernel in the latest uClinux-dist's is as close to the kernel.org
eleases as possible.
uClinux-dist even lets you add your own kernel easily. For example,
take the penguinppc kernel, extract it
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