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enable string deduplication to reduce memory usage

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Athou
2024-07-13 10:25:32 +02:00
parent 6593174668
commit dc526316a0
2 changed files with 2 additions and 2 deletions
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2
Dockerfile
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@@ -8,5 +8,5 @@ VOLUME /commafeed/data
COPY commafeed-server/config.yml.example config.yml
COPY commafeed-server/target/commafeed.jar .
ENV JAVA_TOOL_OPTIONS -Djava.net.preferIPv4Stack=true -Xms20m -XX:+UseG1GC -XX:-ShrinkHeapInSteps -XX:G1PeriodicGCInterval=10000 -XX:-G1PeriodicGCInvokesConcurrent -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
ENV JAVA_TOOL_OPTIONS -Djava.net.preferIPv4Stack=true -Xms20m -XX:+UseG1GC -XX:+UseStringDeduplication -XX:-ShrinkHeapInSteps -XX:G1PeriodicGCInterval=10000 -XX:-G1PeriodicGCInvokesConcurrent -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
CMD ["java", "-jar", "commafeed.jar", "server", "config.yml"]

2
README.md
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@@ -69,7 +69,7 @@ For example, to limit the JVM to 256MB of memory, use `-Xmx256m`.
The JVM can be configured to release unused memory to the operating system with the following parameters:
-Xms20m -XX:+UseG1GC -XX:-ShrinkHeapInSteps -XX:G1PeriodicGCInterval=10000 -XX:-G1PeriodicGCInvokesConcurrent -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
-Xms20m -XX:+UseG1GC -XX:+UseStringDeduplication -XX:-ShrinkHeapInSteps -XX:G1PeriodicGCInterval=10000 -XX:-G1PeriodicGCInvokesConcurrent -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
This is how the Docker image is configured.
See [here](https://docs.oracle.com/en/java/javase/17/gctuning/garbage-first-g1-garbage-collector1.html)