8252196: ZGC: TestUncommit.java fails due to "Exception: Uncommitted too fast" again(2)

[pliden]

This test has failed a few times because the timeAfterAlloc timestamp (the time when uncommit can start to happen) is taken at the wrong place. We should take this timestamp before we call allocate(), since the allocation could cause ZPageCache::_last_commit to be set, which will dictate when uncommit can happen. This PR moves and renames timeAfterAlloc accordingly.

Testing: gc/z/TestUncommit.java executed multiple times on all platforms.

---

Progress

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Issue

• JDK-8252196: ZGC: TestUncommit.java fails due to "Exception: Uncommitted too fast" again(2)

Reviewers

• Stefan Karlsson (@stefank - Reviewer)
• Erik Österlund (@fisk - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/179/head:pull/179
$ git checkout pull/179

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Webrevs

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@pliden This change now passes all automated pre-integration checks. In addition to the automated checks, the change must also fulfill all project specific requirements

After integration, the commit message will be:

8252196: ZGC: TestUncommit.java fails due to "Exception: Uncommitted too fast" again(2)

Reviewed-by: stefank, eosterlund

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Since the source branch of this PR was last updated there have been 34 commits pushed to the master branch:

• a9993f9: 8253275: Remove unused methods after CMS removal
• 4ac6934: 8253232: G1Analytics::compute_pause_time_ratios() uses wrong pause times in calculation
• 53a4ef2: 8202473: A type variable with multiple bounds does not correctly place type annotation
• b87a159: 8252100: NumberOverflow in class MemoryCache
• 9a7dcdc: 8253261: Disable CDS full module graph until JDK-8253081 is fixed
• 1c84cfa: 8253130: bug7072653.java failed "Popup window height ... is wrong"
• ce93cbc: 8253125: vmTestbase/nsk/stress/stack/stack017.java timed out
• d250f9e: 8253244: Shenandoah: cleanup includes in Shenandoah root processor files
• d38c97d: 8253207: enable problemlists jcheck's check
• 671dfba: 6714834: JarFile.getManifest() leaves an open InputStream as an undocumented side effect
• ... and 24 more: https://git.openjdk.java.net/jdk/compare/d219d8b9871be037815413e6f52bc85ebac8db2a...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate a9993f9464a724637b3d38bd2f6caedf884d3e0b.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[pliden]

/integrate

[openjdk]

@pliden Since your change was applied there have been 34 commits pushed to the master branch:

• a9993f9: 8253275: Remove unused methods after CMS removal
• 4ac6934: 8253232: G1Analytics::compute_pause_time_ratios() uses wrong pause times in calculation
• 53a4ef2: 8202473: A type variable with multiple bounds does not correctly place type annotation
• b87a159: 8252100: NumberOverflow in class MemoryCache
• 9a7dcdc: 8253261: Disable CDS full module graph until JDK-8253081 is fixed
• 1c84cfa: 8253130: bug7072653.java failed "Popup window height ... is wrong"
• ce93cbc: 8253125: vmTestbase/nsk/stress/stack/stack017.java timed out
• d250f9e: 8253244: Shenandoah: cleanup includes in Shenandoah root processor files
• d38c97d: 8253207: enable problemlists jcheck's check
• 671dfba: 6714834: JarFile.getManifest() leaves an open InputStream as an undocumented side effect
• ... and 24 more: https://git.openjdk.java.net/jdk/compare/d219d8b9871be037815413e6f52bc85ebac8db2a...master

Your commit was automatically rebased without conflicts.

Pushed as commit f972155.

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