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how can I reduce average garbage collection pause time in my CI/CD pipeline


To reduce average garbage collection pause time in your CI/CD pipeline, you can follow these steps:

1. Optimize Garbage Collection Settings:

- Increase the Young Generation Size:
- Increase the young generation size to reduce the frequency of garbage collection.
- This can be done by setting the JVM argument `-Xmn` or `-XX:NewRatio`.

- Adjust the Garbage Collection Interval:
- Adjust the garbage collection interval to reduce the pause time.
- This can be done by setting the JVM argument `-Dsun.rmi.dgc.server.gcInterval` or `-Dsun.rmi.dgc.client.gcInterval`.

2. Monitor and Analyze Garbage Collection:

- Use Garbage Collection Profilers:
- Use tools like JProfiler, YourKit, or JVisualVM to monitor and analyze garbage collection.
- These tools can help identify memory leaks, optimize object creation rates, and reduce garbage collection pause times.

3. Optimize Object Creation Rates:

- Reduce Object Creation:
- Reduce the rate at which objects are created in your application.
- This can be done by optimizing your code to create fewer objects or by using caching mechanisms.

4. Use Concurrent Garbage Collection:

- Enable Concurrent Garbage Collection:
- Enable concurrent garbage collection to reduce pause times.
- This can be done by setting the JVM argument `-XX:+UseConcMarkSweepGC`.

5. Monitor and Optimize Memory Utilization:

- Monitor Memory Utilization:
- Monitor memory utilization to identify memory leaks and optimize memory usage.
- This can be done by using tools like VisualVM or GCeasy.

6. Test and Refine:

- Test and Refine Settings:
- Test and refine your garbage collection settings to achieve optimal performance.
- This can be done by running your application under load and monitoring garbage collection pause times.

By following these steps, you can reduce average garbage collection pause times in your CI/CD pipeline and ensure efficient application performance.

Citations:
[1] https://www.dynatrace.com/resources/ebooks/javabook/reduce-garbage-collection-pause-time/
[2] https://blog.heaphero.io/2018/07/10/micrometrics-for-ci-cd-pipeline/
[3] https://dzone.com/articles/how-to-reduce-long-gc-pause
[4] https://blog.gceasy.io/2018/07/10/micrometrics-for-ci-cd-pipeline/
[5] https://github.com/cypress-io/cypress/issues/8525