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System Administration Guide

Memory Management Parameters

Table 66-5 describes the tunable memory management parameters.

Table 66-5 Memory Management Parameters

Parameter 

Default 

Description 

lotsfree

scaled based on physical memory 

If freemem drops below lotsfree, the system starts to steal pages from processes.

tune_t_fsflushr

30

Rate at which fsflush is run, in seconds

tune_t_minarmem

25

The minimum available resident (not swappable) memory needed to avoid deadlock, in pages 

tune_t_minasmem

25

The minimum available swappable memory needed to avoid deadlock, in pages 

tune_t_flckrec

512

The maximum number of active frlocks

Note -

Since the Solaris 2.4 release, the tune_t_gpgslo parameter has been replaced by a more complicated criteria for swapping based on the number of runnable threads.

The freemem parameter is defined in pages. Utilities like vmstat translates freemem into bytes from pages.