Zone-Wide Resource Controls
Zone-wide resource controls limit the total resource usage of all process entities within a
zone. Zone-wide resource controls can also be set using global property names as described in
Zone Components in Introduction to Oracle Solaris Zones
.
Table 6-2 Zones Resource Controls
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zone.cpu-cap
|
Absolute limit on the amount of CPU resources that can be consumed by a non-global
zone.
A value of 100 means 100% of one CPU as the
project.cpu-cap setting. A value of 125 is 125%, because 100%
corresponds to one full CPU on the system when using CPU caps.
|
Quantity (number of CPUs)
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zone.cpu-shares
|
Number of fair share scheduler (FSS) CPU shares for this zone
|
Quantity (shares)
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zone.max-lofi
|
Maximum number of lofi devices that can be created by a zone.
The value limits each zone's usage of the minor node namespace.
|
Quantity (number of lofi devices)
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zone.max-locked-memory
|
Total amount of physical locked memory available to a zone.
When priv_proc_lock_memory is assigned to a zone, consider setting this
resource control as well to prevent that zone from locking all memory.
|
Size (bytes)
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zone.max-lwps
|
Maximum number of LWPs simultaneously available to this zone
|
Quantity (LWPs)
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zone.max-msg-ids
|
Maximum number of message queue IDs allowed for this zone
|
Quantity (message queue IDs)
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zone.max-processes
|
Maximum number of process table slots simultaneously available to this zone.
Because both normal processes and zombie processes take up process table slots, the
max-processes control thus protects against zombies exhausting the process table.
Because zombie processes do not have any LWPs by definition, the max-lwps control
cannot protect against this possibility.
|
Quantity (process table slots)
|
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zone.max-sem-ids
|
Maximum number of semaphore IDs allowed for this zone
|
Quantity (semaphore IDs)
|
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zone.max-shm-ids
|
Maximum number of shared memory IDs allowed for this zone
|
Quantity (shared memory IDs)
|
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zone.max-shm-memory
|
Total amount of System V shared memory allowed for this zone
|
Size (bytes)
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zone.max-swap
|
Total amount of swap that can be consumed by user process address space mappings and
tmpfs mounts for this zone.
|
Size (bytes)
|
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For information on configuring zone-wide resource controls, see
Configuring Resource Controls and Attributes
and Setting Zone-Wide Resource Controls in Introduction to Oracle Solaris Zones
.
Note that it is possible to apply a zone-wide resource control to the global
zone.