Swapping While Sum of SGA Usage And PGA_AGGREGATE_LIMIT Is Larger Than The Amount Of Physical Memory (Doc ID 2273931.1)

Last updated on JUNE 12, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.1 to 12.1.0.1 [Release 12.1]
Information in this document applies to any platform.

Symptoms

When upgrade to 12.1.0.1, if PGA_AGGREGATE_TARGET and PGA_AGGREGATE_LIMIT are not set, the PGA_AGGREGATE_LIMIT will be set to (120% * physical memory - sga_target).

If sum of SGA usage and PGA_AGGREGATE_LIMIT is larger than the amount of physical memory, swapping can be happen.

Cause

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