Re: [Bluemusic-users] battery life w blue/csound

[Steven Y. <ste...@gm...>]

Hi Atte,

One thing you may want to try is powertop:

http://www.lesswatts.org/projects/powertop/

It can help diagnose what is draining your batteries. As for sched, I
used to use it and would run as root to use it, but as the kernel
developed, latency out of a stock kernel seemed to be fine to use just
as a normal user.  I also don't often do any realtime input, listening
to things I've worked on versus MIDI control or things like that.  So
I stopped using sched and haven't had any problems.

steven



On Thu, Feb 21, 2008 at 2:20 PM, Atte André Jensen
<att...@gm...> wrote:
> Steven Yi wrote:
>  > Hi Atte,
>  >
>  > 5 minutes sounds pretty bad. =(
>
>  Ok, maybe I was exaggerating :-)
>
>
>  > Csound itself is certainly taxing and
>  > blue and Java are somewhat taxing.
>
>  Also if rendering with csound running at 5-10% cpu usage?
>
>
>  > I have been using Thinkpads for 6
>  > years or so now and I found my batteries, once they started to go,
>  > really died quickly after that.
>
>  I think this battery has been almost like this since I got it (used, as
>  a gift) in the summer of '06.
>
>
>  > However, I don't remember
>  > experiencing such a drastic difference in battery when working with
>  > blue/csound on battery, though I don't use --sched anymore.
>
>  Out of curiosity; why not --sched?
>
>
>  > I would be
>  > able to do work for a couple hours on the batteries I had when they
>  > were in good working order.
>
>  That sound good!
>
>
>  > Could you test with just Csound?
>
>  I'll try, hopefully over the weekend.
>
>
>   > Also with Csound without using
>  > sched?
>
>  I'll do that tomorrow!
>
>
>  > Also what OS, thinkpad model, kernel, etc. are you using?
>
>  ubuntu 7.10, t41, 2.6.22-14-rt (the one in ubuntu), with gnome.
>
>  I just switched from (or rather; I'm still in the process of/trying to
>  switch from) debian, and I think I noticed a drop in battery life with
>  ubuntu. Esp I have to disable the wireless (it seems), something that
>  didn't matter under debian.
>
>  Well basically I could buy a new battery, and I even ordered one, but
>  they seems be be slow in delivery, so now I'm starting to have second
>  thoughts. Basically I'm wondering if I would really experience at
>  drastic boost in battery life with a new battery. Hence this thread in
>  an attempt to figure out if it's my configuration or the battery that's
>  giving me poor battery life.
>
>  --
>
>
> peace, love & harmony
>  Atte
>
>  http://atte.dk       | http://myspace.com/attejensen
>  http://anagrammer.dk | http://modlys.dk
>
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