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From: Daniel Klaffenbach <danielklaffenbach@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: 2.6.25 regression: powertop says 120K wakeups/sec
Date: Thu, 24 Apr 2008 10:51:41 +0200	[thread overview]
Message-ID: <200804241051.47830.danielklaffenbach@gmail.com> (raw)

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With the stable 2.6.25 release I still get a _massive_ amount of wakeups 
(around 50k). Also the power consumption is a lot higher than with 2.6.24.5. 
I am using a Mobile AMD Sempron (32bit) on an nx6125 laptop (Gentoo).
In 2.6.25 an "extra timer interrupt" appeared, which was not there in previous 
kernel versions.

Power usage:
2.6.24.5: ~12-15 W
2.6.25: ~16-22 W

Wakeups:
2.6.24.5: 10-300
2.6.25: 900-50000!!


I thought the patch posted went into the stable kernel, but it does not seem 
to do anything for me. I have also tried 2.6.25-git3, but no changes.

Here are some links to potentially useful files (idle, no WLAN):
dmesg-2.6.25: http://pastebin.ca/995545
powertop 2.6.25: http://pastebin.ca/995548
dmesg-2.6.24.5: http://pastebin.ca/995549
powertop 2.6.24.5: http://pastebin.ca/995550

If there is anything I can provide you with for debugging let me know.

- Daniel

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             reply	other threads:[~2008-04-24  8:45 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-24  8:51 Daniel Klaffenbach [this message]
  -- strict thread matches above, loose matches on Subject: below --
2008-03-22 20:24 2.6.25 regression: powertop says 120K wakeups/sec David Brownell
2008-03-23  0:35 ` Andrew Morton
2008-03-23 18:04   ` Alexey Starikovskiy
2008-03-28 19:01   ` David Brownell
2008-03-28 19:13     ` Pallipadi, Venkatesh
2008-03-28 19:44       ` David Brownell
2008-03-28 20:30         ` Venki Pallipadi
2008-03-28 21:09           ` David Brownell
2008-03-28 21:55             ` Pallipadi, Venkatesh
2008-03-28 22:09               ` David Brownell
2008-03-28 22:56                 ` Venki Pallipadi
2008-03-28 23:01                   ` Rafael J. Wysocki
2008-03-28 23:07                     ` Pallipadi, Venkatesh
2008-03-31 17:42                     ` Mark Lord
2008-03-31 18:34                       ` Pallipadi, Venkatesh
2008-03-28 23:36                   ` David Brownell
2008-03-28 23:51                     ` Pallipadi, Venkatesh
2008-03-29  0:15                       ` David Brownell

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