suspend status

[Eric Anderson]

Yann Berthier wrote:
>    Hi gang,
> 
>    My IBM T41 suspend / resume well (-CURRENT from the 12/3): screen
>    goes black, every activity seems stopped, resume like a champ (i'm
>    not sure that champs resume either)
>    
>    but battery goes down as if it where not suspended:
> 
>    Remaining battery life: 99%
>    Remaining battery time:  3:18:00
>    [yb at taz 19:00]% sudo zzz
> 
>    After resuming:
> 
>    Remaining battery life: 80%
>    Remaining battery time:  2:00:00
>    [yb at taz 20:29]%
> 
>    I know the remaining battery time is not an accurate measure, but all
>    in one I stay suspended 1h30, and my battery 'lost' 1h20 of power -
>    so it says
> 

Refigure your math - if 100% cpu means 3hrs 18 minutes of runtime left, 
then that about 200 minutes of runtime.  So 1% equals 2 minutes of 
runtime roughly.  So, you suspend - and wait up 90 minutes later.  If it 
would have been running like normal, it would eat up 1% per 2 minutes, 
so about 45% of your battery - but it didn't, it only ate up 20%.  So 
ath that rate, it was using less than half the power as when in 
non-suspend mode.

Eric


-- 
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Eric Anderson        Sr. Systems Administrator        Centaur Technology
When in doubt, mumble; when in trouble, delegate; when in charge, ponder
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