136 CONFIGURING SCHEDULER WITH DISPADMIN
 137        You can use the dispadmin(1M) command to examine and tune the FSS
 138        scheduler's time quantum value. Time quantum is the amount of time that
 139        a thread is allowed to run before it must relinquish the processor. The
 140        following example dumps the current time quantum for the fair share
 141        scheduler:
 142 
 143          $ dispadmin -g -c FSS
 144               #
 145               # Fair Share Scheduler Configuration
 146               #
 147               RES=1000
 148               #
 149               # Time Quantum
 150               #
 151               QUANTUM=110
 152 
 153 
 154 
 155        The value of the QUANTUM represents some fraction of a second with the
 156        fractional value determied by the reciprocal value of RES. With the
 157        default value of RES = 1000, the reciprocal of 1000 is .001, or
 158        milliseconds. Thus, by default, the QUANTUM value represents the time
 159        quantum in milliseconds.
 160 
 161 
 162        If you change the RES value using dispadmin with the -r option, you
 163        also change the QUANTUM value. For example, instead of quantum of 110
 164        with RES of 1000, a quantum of 11 with a RES of 100 results. The
 165        fractional unit is different while the amount of time is the same.
 166 
 167 
 168        You can use the -s option to change the time quantum value. Note that
 169        such changes are not preserved across reboot. Please refer to the
 170        dispadmin(1M) man page for additional information.
 171 
 172 
 173 SEE ALSO
 174        prctl(1), priocntl(1), dispadmin(1M), psrset(1M), priocntl(2),
 175        project(4), resource_controls(5)
 176 

 136 CONFIGURING SCHEDULER WITH DISPADMIN
 137        You can use the dispadmin(1M) command to examine and tune the FSS
 138        scheduler's time quantum value. Time quantum is the amount of time that
 139        a thread is allowed to run before it must relinquish the processor. The
 140        following example dumps the current time quantum for the fair share
 141        scheduler:
 142 
 143          $ dispadmin -g -c FSS
 144               #
 145               # Fair Share Scheduler Configuration
 146               #
 147               RES=1000
 148               #
 149               # Time Quantum
 150               #
 151               QUANTUM=110
 152 
 153 
 154 
 155        The value of the QUANTUM represents some fraction of a second with the
 156        fractional value determined by the reciprocal value of RES. With the
 157        default value of RES = 1000, the reciprocal of 1000 is .001, or
 158        milliseconds. Thus, by default, the QUANTUM value represents the time
 159        quantum in milliseconds.
 160 
 161 
 162        If you change the RES value using dispadmin with the -r option, you
 163        also change the QUANTUM value. For example, instead of quantum of 110
 164        with RES of 1000, a quantum of 11 with a RES of 100 results. The
 165        fractional unit is different while the amount of time is the same.
 166 
 167 
 168        You can use the -s option to change the time quantum value. Note that
 169        such changes are not preserved across reboot. Please refer to the
 170        dispadmin(1M) man page for additional information.
 171 
 172 
 173 SEE ALSO
 174        prctl(1), priocntl(1), dispadmin(1M), psrset(1M), priocntl(2),
 175        project(4), resource_controls(5)
 176