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From: "H. Peter Anvin" <hpa@zytor.com>
To: Peter Rabbitson <rabbit@rabbit.us>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Terrible IO performance when using 4GB of RAM on a 32 bit machine
Date: Thu, 21 Jun 2007 12:26:57 -0700	[thread overview]
Message-ID: <467AD101.4020107@zytor.com> (raw)
In-Reply-To: <467AB4CF.7030904@rabbit.us>

Peter Rabbitson wrote:
> 
> I have captured dmesg output without mem[5], with mem=3900M[6] and
> mem=2048M[7].
> 

What does /proc/mtrr look like in the two cases?

	-hpa

  reply	other threads:[~2007-06-21 19:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-21 17:26 Terrible IO performance when using 4GB of RAM on a 32 bit machine Peter Rabbitson
2007-06-21 19:26 ` H. Peter Anvin [this message]
2007-06-21 23:02   ` Peter Rabbitson
     [not found] <fa.8+Qu4ZH2B8PP3bRaZ5LNdUcsFIQ@ifi.uio.no>
     [not found] ` <fa.X6rjOVHT6SoOzt6SHEJROeRgf98@ifi.uio.no>
     [not found]   ` <fa.qwrQSldd4OzDT6RgWE5P1BD9PJw@ifi.uio.no>
2007-06-22  0:00     ` Robert Hancock
2007-06-22  8:29       ` Peter Rabbitson
2007-06-22 14:36         ` Robert Hancock

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