From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Reed, Timothy A" <timothy.a.reed@lmco.com>
Cc: Linux "Kernel ML (E-mail)" <linux-kernel@vger.kernel.org>
Subject: Re: High Mem Options
Date: 05 Mar 2003 13:38:46 +0000 [thread overview]
Message-ID: <1046871526.14167.2.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <9EFD49E2FB59D411AABA0008C7E675C00DCDFE01@emss04m10.ems.lmco.com>
On Wed, 2003-03-05 at 11:28, Reed, Timothy A wrote:
> Hello all,
> Yet another quick question...is there any down side to using the
> 64GB option over the 4GB option if the machine only has 2GB of RAM onboard??
> I would think this would be a performance issue? Does the kernel only use
> the translation table if it has to access any memory location over 4GB?
The 64Gb mode has to use different page table formats, so there is a hit
always
--
Alan Cox <alan@lxorguk.ukuu.org.uk>
prev parent reply other threads:[~2003-03-05 12:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-05 11:28 Reed, Timothy A
2003-03-05 12:11 ` Michael Vergoz
2003-03-05 13:36 ` Alan Cox
2003-03-05 12:49 ` Michael Vergoz
2003-03-05 12:57 ` William Lee Irwin III
2003-03-05 13:02 ` Michael Vergoz
2003-03-05 13:10 ` William Lee Irwin III
2003-03-09 2:41 ` Bill Davidsen
2003-03-05 14:21 ` Alan Cox
2003-03-05 12:26 ` William Lee Irwin III
2003-03-05 20:31 ` Gerrit Huizenga
2003-03-05 20:58 ` William Lee Irwin III
2003-03-05 21:11 ` Gerrit Huizenga
2003-03-05 21:34 ` Martin J. Bligh
2003-03-05 13:38 ` Alan Cox [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1046871526.14167.2.camel@irongate.swansea.linux.org.uk \
--to=alan@lxorguk.ukuu.org.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=timothy.a.reed@lmco.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®