JDK-8368974 : G1: JDK-8348278: Trim InitialRAMPercentage caused a performance regression in Renaissance-FjKmeans
Type:Bug
Component:hotspot
Sub-Component:gc
Affected Version:26
Priority:P2
Status:New
Resolution:Unresolved
Submitted:2025-09-30
Updated:2025-10-06
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Unresolved : Release in which this issue/RFE will be addressed. Resolved: Release in which this issue/RFE has been resolved. Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
We can observe a performance regression in Renaissance-FjKmeans in the range of 1.65–1.92% on MacOSX x64/aarch64. No extra JVM arguments are supplied so we found this regression using G1.