From: Volker Armin Hemmann <volkerarmin@googlemail.com>
To: Yinghai Lu <yhlu.kernel@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: amd64 + mtrr: only 3.1gb of 8gb are covered, kernel 2.6.30 and earlier.
Date: Sun, 23 Aug 2009 11:11:26 +0200 [thread overview]
Message-ID: <200908231111.26414.volkerarmin@googlemail.com> (raw)
In-Reply-To: <86802c440908222322s44957498s72a76940f89271cf@mail.gmail.com>
On Sonntag 23 August 2009, Yinghai Lu wrote:
> On Sat, Aug 22, 2009 at 12:26 PM, Volker Armin
>
> Hemmann<volkerarmin@googlemail.com> wrote:
> > when I went from 4gb to 6gb I had a performance degradation. Since the
> > 8gb are faster and the new cpu is faster, I don't see degradation. But I
> > wonder how much better performance could be with 'correct' mtrr.
>
> that is weird. with 4g should have mem hole remapping.
>
> do you still have /proc/mtrr for 6g setup?
>
> YH
I have it here:
http://marc.info/?l=linux-kernel&m=124336823415460&w=2
Glück Auf,
Volker
next prev parent reply other threads:[~2009-08-23 9:11 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-21 16:14 amd64 + mtrr: only 3.1gb of 8gb are covered, kernel 2.6.30 and earlier Volker Armin Hemmann
2009-08-22 5:43 ` Robert Hancock
2009-08-22 18:48 ` Yinghai Lu
2009-08-22 18:54 ` Volker Armin Hemmann
2009-08-22 19:04 ` Yinghai Lu
[not found] ` <200908222126.31390.volkerarmin@googlemail.com>
[not found] ` <86802c440908222322s44957498s72a76940f89271cf@mail.gmail.com>
2009-08-23 9:11 ` Volker Armin Hemmann [this message]
2009-08-27 1:13 ` Volker Armin Hemmann
2009-08-27 7:13 ` Yinghai Lu
2009-08-27 16:28 ` Volker Armin Hemmann
2009-09-19 20:11 ` Volker Armin Hemmann
2009-09-20 6:03 ` Yinghai Lu
2009-09-29 17:32 ` Volker Armin Hemmann
2009-09-29 19:23 ` Yinghai Lu
2009-09-29 19:24 ` Volker Armin Hemmann
-- strict thread matches above, loose matches on Subject: below --
2009-08-22 19:29 Volker Armin Hemmann
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