JDK-8245707 : Increase Metaspace reserve alignment
- Type: Enhancement
- Component: hotspot
- Sub-Component: runtime
- Affected Version: 15
- Priority: P4
- Status: Resolved
- Resolution: Fixed
- Submitted: 2020-05-25
- Updated: 2024-10-17
- Resolved: 2020-06-02
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| JDK 15 |
|---|
15 b26Fixed  |
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Description
One of the motivations behind JDK-8243392 was to decouple CDS reservation alignment from metaspace alignment and prevent misuse of metaspace reserve alignment outside metaspace. This is needed since with the upcoming new metaspace (JDK-8221173) its reserve alignment requirement will be much higher than CDS alignment. For the time being, until JDK-8221173 finds its way into jdk mainline, we should increase metaspace reserve alignment in jdk mainline to trigger any remaining illegal uses of metaspace reserve alignments and to prevent new ones from creeping in.
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