[ECOS] Functions to consume CPU time in x86

Lewin A.R.W. Edwards larwe@larwe.com
Wed Mar 28 12:08:00 GMT 2001


>And of course I want to be able to specify that I want to keep the CPU
>busy for specific X (mili/nano)seconds and not only keep it busy for some
>randon amount of time.

This is going to be close to impossible to achieve. The exact amount of 
time will depend on:

* clock speed
* exact CPU vendor and model (and maybe microcode revision)
* L1 and L2 cache state
* alignment of code
* MMU state
* (potentially) other hardware tying up buses

You'll need to examine the instruction timing for your particular specific 
hardware and write functions of your own methinks.

=== Lewin A.R.W. Edwards (Embedded Engineer)
Work: http://www.digi-frame.com/
Personal: http://www.zws.com/ and http://www.larwe.com/

"Und setzet ihr nicht das Leben ein,
Nie wird euch das Leben gewonnen sein."



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