Granule Size Change in Oracle Release 12.2, 18c, and 19c (Doc ID 2658593.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

The granule size is determined based on the amount of memory requested at the instance startup. It is based on the SGA_MAX_SIZE.

SGA_MAX_SIZE (or memory_max_target)	GRANULE SIZE
<= 1GB	4MB
>1Gb <= 8GB	16MB
>8Gb <= 16GB	32MB
>16Gb <= 32GB	64MB
>32Gb <= 64GB	128MB
>64Gb <= 128GB	256MB
> 128GB	512MB

In the same memory setting, the granule size of 18c and 19C is different.

Upgrade to 19c.

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In this Document

Symptoms

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