Skip to content

Conversation

@anandreshmi46
Copy link
Contributor

This PR updates the Java Profiler enablement documentation to explicitly state that the Live Heap Size Profiler is not supported on Windows.

While the Windows limitation of the Datadog Profiler native library is already mentioned elsewhere in the public documentation, it is not currently reiterated in the section that explains how to enable the Live Heap Profiler. This can lead to confusion for users attempting to enable live heap profiling on Windows platform

What does this PR do? What is the motivation?

Merge instructions

Merge readiness:

  • Ready for merge

For Datadog employees:

Your branch name MUST follow the <name>/<description> convention and include the forward slash (/). Without this format, your pull request will not pass CI, the GitLab pipeline will not run, and you won't get a branch preview. Getting a branch preview makes it easier for us to check any issues with your PR, such as broken links.

If your branch doesn't follow this format, rename it or create a new branch and PR.

[6/5/2025] Merge queue has been disabled on the documentation repo. If you have write access to the repo, the PR has been reviewed by a Documentation team member, and all of the required checks have passed, you can use the Squash and Merge button to merge the PR. If you don't have write access, or you need help, reach out in the #documentation channel in Slack.

Additional notes

Update Live-Heap profiler section in Java profiler enablement page
@anandreshmi46 anandreshmi46 requested a review from a team as a code owner January 28, 2026 13:49
@github-actions
Copy link
Contributor

Preview links (active after the build_preview check completes)

Modified Files

Copy link
Contributor

@maycmlee maycmlee left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Small suggestions and also a question


The allocation engine does not depend on the `/proc/sys/kernel/perf_event_paranoid` setting.

Note: Live-heap profiler is based on Datadog Profiler library, not JFR-based, so live heap profile type is not available on Windows.
Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

What's JFR?

Suggested change
Note: Live-heap profiler is based on Datadog Profiler library, not JFR-based, so live heap profile type is not available on Windows.
**Note**: Live-heap profiler is based on the Datadog Profiler library and not JFR. Live-heap profile type is not available on Windows.

Copy link
Contributor Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

JFR is Java Flight Recorder. Continuous profiler has got 2 profiling modes, one using Datadog profiler library (ddprof) and other using JFR

Copy link
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Thanks! We can leave it as an acronym. I didn't realize it was already being used in the doc.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

None yet

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants