Mr. Hamilton,
> I'm running a test program. There are two threads.
> One is just to generate clock events for the other.
>
> So the first thread is set up as periodic with a time
> interval x and then
> just loops...
> while (1)
> {
> pthread_wait_np();
> semaphore->signal();
> }
>
> The second thread waits on the semaphore, and counts the
> clock events until
> 1 second passes (i.e. 1/x counts) and prints actual time.
>
> Therefore, I expect to see print messages of the actual time
> every 1 second.
This should work just fine, as near as I can tell. Since it is so
simple, please post your code so we can have a look at it. Also, how are
you getting the actual time?
> So, how do others achieve higher rates? From what I read, I get the
> impression that I have to recompile the kernel with
> #define HZ 1000
> in params.h file.
Absolutely not. That is only required to adjust the normal time
slice in standard Linux. It is not necessary for RTLinux.
Regards,
Steve
--------------------------
Stephen D. Cohen
Engineering Manager
Xybion Sensor Positioning Systems
11528 53rd Street North
Clearwater, FL 33760
Voice: (727) 299-0150
Fax: (727) 299-0804
[EMAIL PROTECTED]
www.xybion.com
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