6004: Should add tenuring summary to the GC visualization

[aymane-harmaz]

This change adds a new tab to display the tenuring distribution for GC cycles.

There are 3 case scenarios:

• Single GC cycle selected: A histogram chart is shown representing the tenuring distribution (total size across ages) for the selected cycle.
• No GC cycle selected: An informational message is displayed to prompt the user to select a cycle.
• Multiple GC cycles selected: An informational message is displayed indicating that only a single cycle can be viewed at a time.
  This enhancement improves visibility into object tenuring during individual GC cycles.

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Progress

• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• JMC-6004: Should add tenuring summary to the GC visualization (New Feature - P3)

Reviewers

• Marcus Hirt (@thegreystone - Reviewer) ⚠️ Review applies to fc0c4c26

Reviewing

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[openjdk]

@aymane-harmaz This change now passes all automated pre-integration checks.

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6004: Should add tenuring summary to the GC visualization

Reviewed-by: hirt

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[mlbridge]

Webrevs

• 01: Full - Incremental (18eeb4af)
• 00: Full (fc0c4c26)

[thegreystone]

Looks good Aymane! Do you also handle the case where the event is off, so that there aren't any tenuring distribution events available at all?

[thegreystone]

Perhaps this can be more specific? "Multiple GC cycles selected. Distribution is only shown for a single GC."

[aymane-harmaz]

Looks good Aymane! Do you also handle the case where the event is off, so that there aren't any tenuring distribution events available at all?

I have added in the latest commit checks on tenuring events, if not found, I display the following message for all kind of selections: