-XX:[+|-]HitachiExplicitMemoryAutoRefReclaim (Memory usage reduction option for Explicit heap used in an HTTP session)

Format

-XX:+HitachiExplicitMemoryAutoRefReclaim

Enables the memory usage reduction function of the Explicit heap used in an HTTP session.

-XX:-HitachiExplicitMemoryAutoRefReclaim

Disables the memory usage reduction function of the Explicit heap used in an HTTP session.

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Description

Specifies the enabling or disabling of the memory usage reduction function of the Explicit heap used in an HTTP session.

If the function is disabled, the automatic release of the Explicit memory block created by the Application Server is not reserved automatically.

If the function is enabled, automatic release is automatically reserved for the Explicit memory block created by the Application Server to allocate the HTTP session objects in addition to the Explicit memory block created using the automatic allocation setup file. As a result, you can reduce the required Explicit heap size.

However, if the function is enabled, you must note the content output in the operation information. For details, see 7.11 Reducing memory usage of the Explicit heap that is used in an HTTP session in the manual uCosminexus Application Server Expansion Guide.

Default value

• -XX:-HitachiExplicitMemoryAutoRefReclaim

Prerequisite options

• -XX:+HitachiExplicitMemoryAutoReclaim

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