1、在bin/catalina.bat文件中加入下面参数,对JVM进行优化,至于这一大驼参数的作用及说明,大家到网上找找,应该有很多的,如:http://www.mzone.cc/article/321.html
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set JAVA_OPTS= -server -Xms1000M -Xmx1000M #-Xms与-Xmx设成一样的值,避免JVM因为频繁的GC导致性能大起大落 -Xss512k -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:PermSize=64M -XX:MaxPermSize=300M -XX:+DisableExplicitGC -XX:MaxTenuringThreshold=31 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless= true |
上述这样的配置,基本上可以达到:
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系统响应时间增快
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JVM回收速度增快同时又不影响系统的响应率
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JVM内存最大化利用
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线程阻塞情况最小化
2、Tomcat连接参数的优化,主要是针对吞吐量做优化:
修改conf/server.xml文件,把原来
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< Connector port = "8080" protocol = "HTTP/1.1" /> |
改成下面的内容
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< Connector port = "8080" protocol = "HTTP/1.1" URIEncoding = "UTF-8" minSpareThreads = "25" maxSpareThreads = "75" enableLookups = "false" disableUploadTimeout = "true" connectionTimeout = "20000" acceptCount = "300" maxThreads = "300" maxProcessors = "1000" minProcessors = "5" useURIValidationHack = "false" compression = "on" compressionMinSize = "2048" compressableMimeType = "text/html,text/xml,text/javascript,text/css,text/plain" redirectPort = "8443" /> |