tomcat 调优案例

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本文优化信息，总体参考：tomcat性能调优

本机器环境：

linux

centos 6.5

tomcat7

jdk1.7

catalina.sh中注释最后一行添加

export JAVA_OPTS="-server -Xms1400M -Xmx1400M -Xss512k -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:PermSize=128M -XX:MaxPermSize=256M -XX:+DisableExplicitGC -XX:MaxTenuringThreshold=31 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC  -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m  -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless=true "

server.xml 修改：

  <Connector port="8084" protocol="HTTP/1.1"               URIEncoding="UTF-8"  minSpareThreads="25" maxSpareThreads="75"          enableLookups="false" disableUploadTimeout="true" connectionTimeout="20000"          acceptCount="1000"  maxThreads="1000" maxProcessors="1000" minProcessors="5"          useURIValidationHack="false"          compression="on" compressionMinSize="2048"          compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"               redirectPort="8443" /> <Connector executor="tomcatThreadPool"               port="8084" protocol="HTTP/1.1"               minProcessors="5"               maxProcessors="2000"               acceptCount="2000"               connectionTimeout="20000"               redirectPort="8443" />

模拟2000用户读取文件：

loadrunner负载压力测试如下图：

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