Solaris Tunable Parameters Reference Manual

tmpfs:tmpfs_maxkmem

Description

Maximum amount of kernel memory that TMPFS can use for its data structures (tmpnodes and directory entries).

Data Type

Unsigned long

Default

Range

Number of bytes in one page (8192 for UltraSPARCTM systems, 4096 for all others) to 25% of the available kernel memory at the time TMPFS was first used.

Units

Bytes

Dynamic?

Yes

Validation

None

When to Change

Increase if the following message is displayed on the console or written in the messages file.


tmp_memalloc: tmpfs over memory limit

The current amount of memory used by TMPFS for its data structures is held in the tmp_kmemspace field, which can be examined with a kernel debugger.

Commitment Level

Unstable