schedParms
schedParms — queries or sets the OS scheduling parameters of the
driver.
Synopsis
(schedParms [relative_priority [scheduling_policy]])
Parameters
- relative_priority
- The amount to decrease task priority. Similar
to the Unix renice utility, a positive
number will decrease the task priority. A negative number can
be used to increase the task priority.
- scheduling_policy
The OS scheduling policy to apply to the task,
one of the following:
- SCHED_FIFO The driver will
execute until it blocks or is preempted by a higher
priority process,
- SCHED_RR The driver will be
time-sliced with other processes at the same
priority.
- SCHED_OTHER An alternative
scheduling algorithm that decays the priority if it
consumes too much processor without blocking.
Returns
(schedParms current_priority current_scheduler_policy)
Description
This command queries or sets the
OS scheduling parameters for the driver process. The command is
rarely needed, but may be helpful in tuning the real-time
performance of the driver.
![[Note]](images/note.gif) | The correctness and
effectiveness of this command is OS dependent. |
Example
The query:
(schedParms)
returns
(schedParms 10 SCHED_OTHER)
