Oracle Solaris Tunable Parameters Reference Manual

lgrp_mem_pset_aware

Description

If a process is running within a user processor set, this variable determines whether randomly placed memory for the process is selected from among all the lgroups in the system or only from those lgroups that are spanned by the processors in the processor set.

For more information about creating processor sets, see psrset(1M).

Data Type

Boolean

Default

0, the Solaris OS selects memory from all the lgroups in the system

Range
  • 0, the Solaris OS selects memory from all the lgroups in the system (default)

  • 1, try selecting memory only from those lgroups that are spanned by the processors in the processor set. If the first attempt fails, memory can be allocated in any lgroup.

Dynamic?

No

Validation

None

When to Change

Setting this value to a value of one (1) might lead to more reproducible performance when processor sets are used to isolate applications from one another.

Commitment Level

Uncommitted