FW: Power awareness

[Z.K. Cheng]

Joel,
I have the same problem to search for ISA-bus RTEMS support. 

Z.K. Cheng
Netrake Corp.
214-291-1016

-----Original Message-----
From: Bill Butler [mailto:billb at tnex.com]
Sent: Friday, April 19, 2002 8:50 AM
To: joel.sherrill at OARcorp.com; root at OARcorp.com
Cc: rtems-users at oarcorp.com
Subject: RE: Power awareness


Joel,

I have tried for the past 2 days to use the user list archive search
engine and get a failure message when searching (Internal Server Error).
I have tried it under Explorer/2000 and Netscape/linux with the same
results. 

Is it something on my end or Oarcorp?

Thanks

Bill Butler
AIPCom Inc
972-644-2328 x16
bbill at tnex.com
 

-----Original Message-----
From: Joel Sherrill [mailto:joel.sherrill at OARcorp.com] 
Sent: Friday, April 19, 2002 6:33 AM
To: Harvey Tuch
Cc: rtems-users at oarcorp.com
Subject: Re: Power awareness



Harvey Tuch wrote:
> 
> Hi,
> 
> I was wondering if anyone has done any work on power
awareness/management/
> efficiency on RTEMS (e.g. dynamic voltage scheduling, accounting, API
issues)? I
> gather some has been done on eCos, but I haven't seen anything on
RTEMS.
> 
> I'm looking for an area to do a thesis at the moment, and I am
considering
> doing this, but I do not wish to duplicate existing work.

There is no variable power management capability right now but there is
a place to insert a switch to idle/low power mode.  Some CPUs and BSPs
have a special version of the IDLE task which puts the CPU in a low
power
state.  But there is nothing that says we are only 10% CPU utilization
so
lower the clock rate.

> Thanks,
> Harvey
> --
>
------------------------------------------------------------------------
----
> Harvey Tuch
htuch at cse.unsw.edu.au
>
------------------------------------------------------------------------
----

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel at OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
   Support Available             (256) 722-9985