Kernel Recompile Mint Linux

[omegahalo-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org (Chris O'Connell)]

Thanks for your advice everyone!

I've noticed from the System Monitor that the CPU is being used around
%25-35 percent even in an idle state.  That is 25-35% on each core!

Is that something to worry about?

Chris

On Tue, Nov 17, 2009 at 1:08 PM, Shankar Viswanathan <
shankar.viswan-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org> wrote:

> On Tue, Nov 17, 2009 at 8:38 AM, Jerry Feldman <gaf-mNDKBlG2WHs at public.gmane.org> wrote:
> > I would take a much closer look not so much at the CPU, but at power
> > management. What is your time interval before the display goes to sleep.
> > What setting do you have when you close the lid on battery power.
> > One of the major uses of power is the display. Certainly every little
> > thing is a component, and knowing how to tune a Linux and Unix system is
> > very good experience, although not as necessary today as in the past.
> >
> > On 11/17/2009 08:28 AM, Chris O'Connell wrote:
> >> I'm running Mint Linux on a netbook (an MSI Wind U100).  The speed is
> OK,
> >> but the battery life is not super great.  The battery life is much
> extended
> >> running Windows XP.  I figure if I can limit the CPU usage by
> >> eliminating unnecessary items from loading I can increase the battery
> life
> >> and speed at the same time.
> <snip>
>
> If you do want to examine CPU power state residency ratios and causes
> of CPUs having to exit low power states, Intel has a good tool for
> Linux:
> http://www.lesswatts.org/projects/powertop/
> It also gives helpful suggestions (usually) on what you can do to
> decrease CPU power consumption: e.g. command to turn off Bluetooth if
> not using it.
>
> And agree on Jerry's point about CPU not being the dominant power hog
> in a laptop system: display backlight and rotating media are the
> bigger culprits for common laptop usage scenarios (i.e. browser and
> basic office productivity apps).
>
> And watch out for the flash plugin: that thing is notorious!
>
> -Shankar
>
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