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JDK 11 G1 Adaptive IHOP Drops to a Very Low Percent after Humongous Allocations (Doc ID 2832809.1)

Last updated on MARCH 31, 2023

Applies to:

Java SE JDK and JRE - Version 11 and later
Information in this document applies to any platform.

Symptoms

The JDK 11 Initiating Heap Occupancy Percentage (IHOP) is adaptive and set to 45%, by default. (note occupancy: ... threshold: ... (45.00) in the GC log entry):

 Young GCs have collected many of those humongous objecs, but the IHOP does not change from the very low value.

Cause

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In this Document
Symptoms
Cause
Solution
References


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