SWJTU-ZhangLei opened a new pull request, #51007:
URL: https://github.com/apache/doris/pull/51007
* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17
fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc):
num #instances #bytes class name
----------------------------------------------
1: 7464 7053464 [B
2: 37465 3656360 [C
3: 7076 2909880 [Ljava.lang.Object;
4: 4915 2306872 [I
5: 9167 1719552 [S
6: 16229 1168488
io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
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