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bipinb15317820
March 19, 2020
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AEM 6.5 JVM Options and Performance Tuneups

  • March 19, 2020
  • 1 reply
  • 3332 views

We are going live to AEM 6.5.4 version in Production and want to check if below JVM options are correct for a production environment please suggest

 

CQ_JVM_OPTS='-server -Xms8192m -Xmx8192m -XX:MaxMetaspaceSize=1024m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/data/aem/heapdumps -Djava.io.tmpdir=/tmp -Djava.awt.headless=true'

 

And below as per adobe aem documentation here : https://docs.adobe.com/content/help/en/experience-manager-65/deploying/deploying/custom-standalone-install.html#java-considerations

 

CQ_JVM_OPTS="${CQ_JVM_OPTS} -XX:+UseParallelGC --add-opens=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED --add-opens=java.base/sun.net.www.protocol.jrt=ALL-UNNAMED --add-opens=java.naming/javax.naming.spi=ALL-UNNAMED --add-opens=java.xml/com.sun.org.apache.xerces.internal.dom=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED -Dnashorn.args=--no-deprecation-warning"

 

Also are there any performance tuneups recommendations for AEM 6.5 other than what is mentioned here https://helpx.adobe.com/experience-manager/kb/performance-tuning-tips.html?

 

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Best answer by aemmarc2

Personally I'd also add : 

 

-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamp

 

These will output Java garbage collection statistics to logs. 

Some of the most useful logs when things hit the fan.

 

Allows you to visualize the Java heap state across time.

1 reply

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Adobe Employee
aemmarc2Adobe EmployeeAccepted solution
Adobe Employee
March 23, 2020

Personally I'd also add : 

 

-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamp

 

These will output Java garbage collection statistics to logs. 

Some of the most useful logs when things hit the fan.

 

Allows you to visualize the Java heap state across time.

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