The global zone is given one share by default. You can use this procedure to change the default allocation. Note that you must reset shares allocated through the prctl command whenever you reboot the system.
For more information, see Using Your Assigned Administrative Rights in Securing Users and Processes in Oracle Solaris 11.3.
# prctl -n zone.cpu-shares -v 2 -r -i zone global
# prctl -n zone.cpu-shares -i zone global
For more information on the prctl utility, see the prctl(1) man page.