JDK-8275865: Print deoptimization statistics in product builds

[simonis]

Deoptimization statistics are already gathered in product builds but for some (probably historical) reasons aren't printed to the VM/Compiler log. These statics can be useful when analyzing the reasons for deoptimization and frequent recompilations.

Because the statistics are already collected anyway, printing them at VM-exit if either -XX:+LogCompilation or -XX:+LogVMOutput are set won't introduce any runtime overhead.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8275865: Print deoptimization statistics in product builds

Reviewers

• Tobias Hartmann (@TobiHartmann - Reviewer)
• kvn - Reviewer ⚠️ Added manually

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/6103/head:pull/6103
$ git checkout pull/6103

Update a local copy of the PR:
$ git checkout pull/6103
$ git pull https://git.openjdk.java.net/jdk pull/6103/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 6103

View PR using the GUI difftool:
$ git pr show -t 6103

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/6103.diff

[bridgekeeper]

👋 Welcome back simonis! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@simonis The following label will be automatically applied to this pull request:

• hotspot-runtime

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[mlbridge]

Webrevs

• 02: Full - Incremental (cef9099a)
• 01: Full - Incremental (42f01aed)
• 00: Full (9b6bc6fe)

[dholmes-ora]

I think the compiler folk need to be the ones to assess this change.

/label add hotspot-compiler

[openjdk]

@dholmes-ora
The hotspot-compiler label was successfully added.

[TobiHartmann]

Looks good.

[openjdk]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8275865: Print deoptimization statistics in product builds

Reviewed-by: thartmann, kvn

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 48 new commits pushed to the master branch:

• 7c996d5: 8269401: Merge "Exceptions" and "Errors" into "Exception Classes"
• d88b89f: 8276067: ZGC: Remove unused function alloc_high_address_at_most()
• 593401f: 8276042: Remove unused local variables in java.naming
• a2f2d8f: 8276057: Update JMH devkit to 1.33
• 1750a6e: 8276055: ZGC: Defragment address space
• d9b0138: 8275704: Metaspace::contains() should be threadsafe
• 9a3e954: 8274879: Replace uses of StringBuffer with StringBuilder within java.base classes
• e6fa5fa: 8276063: ProblemList gtest dll_address_to_function_and_library_name on macosx-generic
• 809488b: 8276046: codestrings.validate_vm gtest fails on ppc64, s390
• 93be099: 4718400: Many quantities are held as signed that should be unsigned
• ... and 38 more: https://git.openjdk.java.net/jdk/compare/0bcc1749eaea20cb983a983073ad33d305681879...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

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

[simonis]

/reviewer credit @vnkozlov

[openjdk]

@simonis
Reviewer kvn successfully credited.

[simonis]

Thanks for the reviews @TobiHartmann & @vnkozlov !

[simonis]

/integrate

[openjdk]

Going to push as commit a343fa8.
Since your change was applied there have been 49 commits pushed to the master branch:

• bec977c: 8275917: Some locks shouldn't allow_vm_block
• 7c996d5: 8269401: Merge "Exceptions" and "Errors" into "Exception Classes"
• d88b89f: 8276067: ZGC: Remove unused function alloc_high_address_at_most()
• 593401f: 8276042: Remove unused local variables in java.naming
• a2f2d8f: 8276057: Update JMH devkit to 1.33
• 1750a6e: 8276055: ZGC: Defragment address space
• d9b0138: 8275704: Metaspace::contains() should be threadsafe
• 9a3e954: 8274879: Replace uses of StringBuffer with StringBuilder within java.base classes
• e6fa5fa: 8276063: ProblemList gtest dll_address_to_function_and_library_name on macosx-generic
• 809488b: 8276046: codestrings.validate_vm gtest fails on ppc64, s390
• ... and 39 more: https://git.openjdk.java.net/jdk/compare/0bcc1749eaea20cb983a983073ad33d305681879...master

Your commit was automatically rebased without conflicts.

[openjdk]

@simonis Pushed as commit a343fa8.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.