From: Peter Osterlund <petero2@telia.com>
To: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.4.19-rc1-ac3
Date: 13 Jul 2002 18:22:01 +0200 [thread overview]
Message-ID: <m2n0svr42e.fsf@best.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.44.0207131435570.3808-100000@linux-box.realnet.co.sz>
Zwane Mwaikambo <zwane@linuxpower.ca> writes:
> did the higher duty cycles have the desired effect?
Not really, unfortunately. The CPU certainly runs slower, but the
difference in power consumption between the fastest and slowest speeds
seems to be quite small. The kernel was configured to use APM idle
calls, but no ACPI stuff. I measured the time it took for the battery
to go from 100% to 90% while reading the lkml mailing list with gnus,
so the machine was mostly idle during the test.
How much power savings can be expected in this situation? Is SpeedStep
likely to give more power savings?
--
Peter Osterlund - petero2@telia.com
http://w1.894.telia.com/~u89404340
next prev parent reply other threads:[~2002-07-13 16:21 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-12 19:14 Linux 2.4.19-rc1-ac3 Alan Cox
2002-07-12 23:42 ` Peter Osterlund
2002-07-13 7:41 ` Zwane Mwaikambo
2002-07-13 10:34 ` Peter Osterlund
2002-07-13 12:38 ` Zwane Mwaikambo
2002-07-13 16:22 ` Peter Osterlund [this message]
2002-07-13 18:27 ` Alan Cox
2002-07-13 19:43 ` Peter Osterlund
2002-07-13 19:54 ` Russell King
2002-07-13 20:56 ` Peter Osterlund
2002-07-15 10:13 ` Thomas Sailer
2002-07-15 10:16 ` Russell King
2002-07-14 1:50 ` Alan Cox
[not found] ` <6010.1026651788@www53.gmx.net>
2002-07-14 13:09 ` Dominik Brodowski
2002-07-14 15:19 ` Peter Osterlund
2002-07-14 15:50 ` Dominik Brodowski
2002-07-14 18:52 ` Peter Osterlund
2002-07-13 10:25 ` Peter Osterlund
2002-07-13 14:15 ` Pavel Machek
2002-07-13 17:09 ` Alan Cox
2002-07-13 15:59 ` fchabaud
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=m2n0svr42e.fsf@best.localdomain \
--to=petero2@telia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=zwane@linuxpower.ca \
/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.