PowerTOP tool released; time to fix the wasted laptop power on fedora?

Dominik 'Rathann' Mierzejewski dominik at greysector.net
Sun May 13 15:04:23 UTC 2007

On Sunday, 13 May 2007 at 16:29, David Timms wrote:
> Guillaume Chazarain wrote:
> >David Timms a écrit :
> >>Would this tool help one in tracing the cause of disk accesses in an 
> >>otherwise inactive/idle notebook. It seems to be about every 3 seconds 
> >>or so that the hard disk LED lights. This must make it impossible for 
> >>the hard drive to get powered down - and save power.
> >
> >echo 1 > /proc/sys/vm/block_dump
> >and then watching dmesg should tell you what happens.
> >Typically: some processing reading some files and updating the atimes.
> >So, look for mount -o noatime.
> OK, that works. Is there some way to tell dmesg to do the equivalent of:
> tail -f dmesg {which doesn't work} ?

watch tail dmesg



Fedora Extras contributor  http://fedoraproject.org/wiki/DominikMierzejewski
Livna contributor http://rpm.livna.org MPlayer developer http://mplayerhq.hu
"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"

More information about the fedora-devel-list mailing list