From: Daniele Lacamera <root@danielinux.net>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>,
"debian-powerpc@lists.debian.org"
<debian-powerpc@lists.debian.org>
Subject: Re: Newer laptops & CPU speed
Date: Thu, 24 Mar 2005 16:25:41 +0100 [thread overview]
Message-ID: <200503241625.42143.root@danielinux.net> (raw)
> Hi !
>
> It seems the new laptops are booting with CPU set to low
> speed. /proc/cpuinfo outputs the wrong fequency (thinks it's high
speed)
> but bogomips shows that it's running at about half speed. This patch
> against 2.6.11 (will not apply on 2.6.10) adds proper cpufreq support
so
> that the boot speed is recognized (fixing /proc/cpuinfo output) and so
> you can acutally use cpufreq interface & utilities to switch to full
> speed (I recommend powernowd).
> This is completely untested as I don't have access to any of those new
> models yet, so I'm waiting for some feedback before submitting
upstream.
> Ben.
[patch follows]
Ben,
your patch seems to be working very well on my new 1.5GHz 12" pbook.
Bogomips more than doubled in /proc/cpuinfo, from about 700 to 1495.04.
Thanks.
--
Daniele Lacamera
root{at}danielinux.net
next reply other threads:[~2005-03-24 15:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-24 15:25 Daniele Lacamera [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-03-14 2:33 Newer laptops & CPU speed Benjamin Herrenschmidt
2005-03-15 14:03 ` Joerg Dorchain
2005-03-15 23:35 ` Benjamin Herrenschmidt
2005-03-16 7:20 ` Joerg Dorchain
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