Steven Seeger wrote:
I have a xenomai userspace application that does the following:
A thread of priority 90 toggles a bit (outb) to move a stepper motor.
A thread of priority 10 updates the display once a second.
The motor thread is periodic and uses rt_task_wait_period(). The display
thread just uses sleep(1).
My question is this: the priority 90 thread is higher priority, and doesn't
do anything relating to linux system calls. Whenever the display thread
updates the display, the motor thread stalls momentarily.
X-window graphic card driver masking hw IRQs? You should see that too when running
the latency tests while moving windows around the desktop.
Btw, how to you measure/observe the stalled state?
Any idea why this is?
Steven
_______________________________________________
Xenomai-help mailing list
[email protected]
https://mail.gna.org/listinfo/xenomai-help
--
Philippe.
_______________________________________________
Xenomai-help mailing list
[email protected]
https://mail.gna.org/listinfo/xenomai-help
