Reserve regions for the collector according to generational reserves

[earthling-amzn]

When the freeset is rebuilt, it reserves a number of regions for evacuation proportional to the total size of the heap. With default settings, this will reserve more regions than intended for the generational mode and may lead to premature allocation failures for mutators.

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Progress

• Change must not contain extraneous whitespace
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Reviewers

• Kelvin Nilsen (@kdnilsen - Committer)

Reviewing

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[earthling-amzn]

/integrate

[openjdk]

@earthling-amzn This change now passes all automated pre-integration checks.

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Reserve regions for the collector according to generational reserves

Reviewed-by: kdnilsen

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[openjdk]

Going to push as commit ea3191d.

[openjdk]

@earthling-amzn Pushed as commit ea3191d.

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