| <?xml version="1.0" encoding="UTF-8"?> | |
| <!-- | |
| Licensed under the Apache License, Version 2.0 (the "License"); | |
| you may not use this file except in compliance with the License. | |
| You may obtain a copy of the License at | |
| http://www.apache.org/licenses/LICENSE-2.0 | |
| Unless required by applicable law or agreed to in writing, software | |
| distributed under the License is distributed on an "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| See the License for the specific language governing permissions and | |
| limitations under the License. | |
| --> | |
| <document xmlns="http://maven.apache.org/XDOC/2.0" | |
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | |
| xsi:schemaLocation="http://maven.apache.org/XDOC/2.0 http://maven.apache.org/xsd/xdoc-2.0.xsd"> | |
| <properties> | |
| <title>Performance Tuning</title> | |
| <author email="dev@openmeetings.apache.org">Apache OpenMeetings Team</author> | |
| </properties> | |
| <body> | |
| <section name="Performance Tuning"> | |
| <p>To use the optimum of performance from your server there is a | |
| start-script for red5 available that does some basic settings in the | |
| JVM. It is called red5-highperf.sh. It is recommended to use that | |
| script for production and high-load scenarios. | |
| </p> | |
| <source> | |
| <![CDATA[ | |
| #!/bin/bash | |
| if [ -z "$RED5_HOME" ]; then export RED5_HOME=.; fi | |
| # Previous option set | |
| export JAVA_OPTS="-Xrs -Xms512M -Xmx1024M -Xss128K -XX:NewSize=256m \ | |
| -XX:SurvivorRatio=16 -XX:MinHeapFreeRatio=20 -XX:+ExplicitGCInvokesConcurrent \ | |
| -Djava.net.preferIPv4Stack=true -Xverify:none" | |
| # start Red5 | |
| echo "Setting Hi Performance Options" | |
| exec $RED5_HOME/red5.sh >> $RED5_HOME/log/jvm.stdout 2>&1 & | |
| ]]> | |
| </source> | |
| <p>You have to exclude the "-XX:+UseConcMarkSweepGC" param from the | |
| default red5-highperf.sh to make it functional! However if you are a | |
| performance expert you might also play with the values to find | |
| perfect matches for your use-case. | |
| </p> | |
| <p> | |
| For a complete overview about possible arguments and their meaning | |
| see: | |
| <a | |
| href="http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html#PerformanceTuning" | |
| rel="nofollow">http://www.oracle.com/technetwork/java/javase/tech/vmoptions-jsp-140102.html#PerformanceTuning | |
| </a> | |
| </p> | |
| </section> | |
| </body> | |
| </document> |