Zone-Wide Resource Controls

Zone-wide resource controls are available on a system with zones installed. Zone-wide resource controls limit the total resource usage of all process entities within a zone.

zone.cpu-cap

In the Solaris 10 5/08 release, sets an absolute limit on the amount of CPU resources that can be consumed by a zone. A value of 100 means 100 percent of one CPU as the project.cpu-cap setting. A value of 125 is 125 percent, because 100 percent corresponds to one full CPU on the system when using CPU caps.

zone.cpu-shares

Limit on the number of fair share scheduler (FSS) CPU shares for a zone. The scheduling class must be FSS. CPU shares are first allocated to the zone, and then further subdivided among projects within the zone as specified in the project.cpu-shares entries. A zone with a higher number of zone.cpu-shares is allowed to use more CPU than a zone with a low number of shares.

zone.max-locked-memory

Total amount of physical locked memory available to a zone.

zone.max-lwps

Maximum number of LWPs simultaneously available to this zone

zone.max-msg-ids

Maximum number of message queue IDs allowed for this zone

zone.max-sem-ids

Maximum number of semaphore IDs allowed for this zone

zone.max-shm-ids

Maximum number of shared memory IDs allowed for this zone

zone.max-shm-memory

Total amount of shared memory allowed for this zone

zone.max-swap

Total amount of swap that can be consumed by user process address space mappings and tmpfs mounts for this zone.

For information on configuring zone-wide resource controls, see Chapter 17, Non-Global Zone Configuration (Overview), in System Administration Guide: Solaris Containers-Resource Management and Solaris Zones and Chapter 18, Planning and Configuring Non-Global Zones (Tasks), in System Administration Guide: Solaris Containers-Resource Management and Solaris Zones. Note that it is possible to use the zonecfg command to apply a zone-wide resource control to the global zone on a system with non-global zones installed.