> What happens if the the stack size is not at the
> good size (too big or not enough) when I init a RT
> task ?
On my experience, if the stack size to small the system rebbots imediatly 8(. I
got very seldom an Oops. If the stack too big, you waste memory IMO. Default is
4096 Byte I believe.
> How may I choose this size, I mean what is the
> relation between the code I have to execute and the
> size I have to give ?
Mmmh, here I can't help.
Generell you can use:
#define THREAD_STACK_SIZE 8192
...
pthread_t rt_thread;
...
int init_module()
{
pthread_attr_t attr;
struct sched_param sched_param;
...
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, THREAD_STACK_SIZE);
sched_param.sched_priority = 1;
pthread_attr_setschedparam(&attr, &sched_param);
...
}
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For more information on Real-Time Linux see:
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