Unix Programming - sched_setscheduler on solaris

Author

sched_setscheduler on solaris

Donald McLachlan

2004-09-02, 6:50 pm

Hi,

I'm writing some code using nanosleep() and I want to minimise the
context switch latency.

By using sched_setscheduler(0, SCHED_FIFO, &settings) I was able to
improve things a bit.

I would like to try using sched_setscheduler(0, SCHED_SYS, &settings)
but sched_setscheduler() keeps returning -1 and setting errno =
Invalid argument.

Can SCHED_SYS be used outside the kernel?
What values must one use in the sched_param structure?
Does anyone have a working example using sched_setscheduler(0,
SCHED_FIFO, &settings) I could look at?

Thanks,
Don