From: Dave Jones <davej@redhat.com>
To: Patrick <mccpat@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Incorrect CPU Frequency in /proc/cpuinfo
Date: Sat, 27 Aug 2005 23:38:02 -0400 [thread overview]
Message-ID: <20050828033802.GA17080@redhat.com> (raw)
In-Reply-To: <43112214.7070203@gmail.com>
On Sat, Aug 27, 2005 at 09:31:48PM -0500, Patrick wrote:
> There is a problem with the display of CPU Frequency in /proc/cpuinfo.
> It displays the CPU Frequency correctly... until you change the speed
> manually with the kernel's frequency scaling. Before I do this, my
> frequency displayed in /proc/cpuinfo is: "3208.757", This is correct.
> Then I: "||echo 600000 /sys/devices/cpu/cpu0/cpufreq/scaling_setspeed"
> The file "scaling_setspeed" shows 600000, which is correct. My CPU does
> change to that speed (I've run tests before and after, and temperature,
> etc), yet /proc/cpuinfo shows no change, no matter what clock speed I
> set it to.
> ....
> The modules that were modprobed at the time:
>
> p4_clockmod
p4 clock modulation doesn't actually change the cpu frequency.
> speedstep-lib
This is a support library used by the other speedstep libs.
(It's meant to be pulled in as a dependancy
rather than directly modprobed)
Your CPU isn't supported by the speedstep drivers, so loading
this is pointless.
> freq_table
support lib for p4-clockmod.
Dave
prev parent reply other threads:[~2005-08-28 3:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-28 2:31 Incorrect CPU Frequency in /proc/cpuinfo Patrick
2005-08-28 3:38 ` Dave Jones [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=20050828033802.GA17080@redhat.com \
--to=davej@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mccpat@gmail.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.