Re: Power consumption HZ100, HZ250, HZ1000: new numbers

From: Lee Revell (rlrevell_at_joe-job.com)
Date: 07/30/05

  • Next message: Christoph Hellwig: "[PATCH] switch fd1772.c from sleep_on to wait_event" 
    To: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Date:	Sat, 30 Jul 2005 14:14:02 -0400

    On Sat, 2005-07-30 at 12:18 -0600, Zwane Mwaikambo wrote:
    > On Sat, 30 Jul 2005, Lee Revell wrote:
    >
    > > So it looks like artsd wastes way more power DMAing a bunch of silent
    > > pages to the sound card than HZ=1000.
    > >
    > > There's nothing the ALSA layer can do about this, it's a KDE bug.
    > >
    > > I think this is a good argument for leaving HZ at 1000 until some of
    > > these userspace bugs are fixed.
    >
    > It's already 'fixed' just set artsd to release the sound device after some
    > idle time. It's in the "Auto-Suspend" seection of the KDE sound system
    > control module.
    >

    It's useless if not enabled by default.

    Lee

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  • Next message: Christoph Hellwig: "[PATCH] switch fd1772.c from sleep_on to wait_event"