You can use the dispadmin command to examine and tune the FSS scheduler's time quantum value. Time quantum is the amount of time that a thread is allowed to run before it must relinquish the processor. To display the current time quantum for the FSS scheduler, type the following:
$ dispadmin -c FSS -g # # Fair Share Scheduler Configuration # RES=1000 # # Time Quantum # QUANTUM=110 |
When you use the -g option, you can also use the -r option to specify the resolution that is used for printing time quantum values. If no resolution is specified, time quantum values are displayed in milliseconds by default. Type the following:
$ dispadmin -c FSS -g -r 100 # # Fair Share Scheduler Configuration # RES=100 # # Time Quantum # QUANTUM=11 |
To set scheduling parameters for the FSS scheduling class, use dispadmin -s. The values in file must be in the format output by the -g option. These values overwrite the current values in the kernel. Type the following:
$ dispadmin -c FSS -s file |