[ECOS] Functions to consume CPU time in x86
Lewin A.R.W. Edwards
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)
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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