FW: Power awareness

Z.K. Cheng zkcheng at netrake.com
Fri Apr 19 14:30:22 UTC 2002

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

Z.K. Cheng
Netrake Corp.

-----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


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

Is it something on my end or Oarcorp?


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
> 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
> I'm looking for an area to do a thesis at the moment, and I am
> 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
state.  But there is nothing that says we are only 10% CPU utilization
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

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