Re: Tomcat 7 performance tuning take full advantage of hardware
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Tanming, On 6/21/16 9:04 AM, tanming1...@163.com wrote: > Hi, I had done some stress tests on Apache Tomcat/7.0.47 and found > that tomcat didn't taken full advantage of hardware resources. I > had used Apache Benchmark tool(ab) to do benckmark,and then monitor > the jvm instance of tomcat via jvisualvm. In the benchmark,I just > test the response time of request a jsp. The CPU usage is not > high,about 20%,even when the concurrent requests increased. So how > can I to do some performance tuning to make tomcat 7 take full > advantage of hardware resources? What makes you think that the CPU should be higher than 20%? What does your test load profile look like? - -chris -BEGIN PGP SIGNATURE- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJXbVpTAAoJEBzwKT+lPKRYcM0P/R7J7aCIcIY5cCuPjrRQRPk7 ZeGcUmEbEr+5MxXC4jYFSqZuxthpWjta/kICmTPAMF/n6YB3206SHBSUOWVitCqX FxlaPCmhkoZ+9nyeEhlRTr3y6HrqfZBpYmQZMac8FSFV22Expq/k0vUhGqPKsmjy g8eQiA8e8L7BxEDHS5CAPawvsSNog6ZrBi2Gdjo69C17QubM0lsbNKZ7NNNwmsDE pSiaTa0lCL6xxUkd+un74JhPKxHBDPNdw+Zr7sEWky6K5ophcJUf4Ch2Q+TX8Hgr EiHMnknqAi7vI5zkhnC3AgMEt+9hurMqnBTZ8B4CTq/JtB4YP72AchN3aUSGoIFy zXolRZSR3SqmhxNTCLVegNNTF502DRCvALa+ZjZ+9SfQAPF3UDrcvnm4MZ+4btIz gekP3hGRq2v9Z5m4KgwQpFHyRF6ncRos3e3+bn7OgYi6U3SyY+UO+2PVsXurrUy6 YtMIugERc79z8d8zh1pXCznT6TCE/ePakWqL/hImZce3wP+9InlLilgbcK68D5W2 7zY82wj1nig6GinUjYeQMf/LzC2AYKotza/gYFx8Fv896OkjlTaG/Zvy1E2ZJubK jwYmRjMVEd7tvQBuJjuKOlVnCv7TMAAvNOVkZxIvld4GbhJZJUmJg2X4g0ticIT0 ywmiAvvoMjp7Ugj9Irs3 =wHy7 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Tomcat 7 performance tuning take full advantage of hardware
Hi, I had done some stress tests on Apache Tomcat/7.0.47 and found that tomcat didn't taken full advantage of hardware resources.I had used Apache Benchmark tool(ab) to do benckmark,and then monitor the jvm instance of tomcat via jvisualvm.In the benchmark,I just test the response time of request a jsp. The CPU usage is not high,about 20%,even when the concurrent requests increased. So how can I to do some performance tuning to make tomcat 7 take full advantage of hardware resources? The test enviroment: andy@test80:~$ uname -a Linux test80 3.8.0-29-generic #42~precise1-Ubuntu SMP Wed Aug 14 16:19:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux andy@test80:~$ lscpu Architecture: x86_64 CPU op-mode(s):32-bit, 64-bit Byte Order:Little Endian CPU(s):16 On-line CPU(s) list: 0-15 Thread(s) per core:2 Core(s) per socket:4 Socket(s): 2 NUMA node(s): 2 Vendor ID: GenuineIntel CPU family:6 Model: 44 Stepping: 2 CPU MHz: 1596.000 BogoMIPS: 4800.19 Virtualization:VT-x L1d cache: 32K L1i cache: 32K L2 cache: 256K L3 cache: 12288K NUMA node0 CPU(s): 0-3,8-11 NUMA node1 CPU(s): 4-7,12-15 andy@test80:~$ java -version java version "1.7.0_51" Java(TM) SE Runtime Environment (build 1.7.0_51-b13) Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode) andy@test80:~$ vmstat -s 82481856 K total memory 81243296 K used memory 51191508 K active memory 27359516 K inactive memory 1238560 K free memory 454584 K buffer memory 46734728 K swap cache 33542140 K total swap 11836 K used swap 33530304 K free swap 3259773994 non-nice user cpu ticks 172256 nice user cpu ticks 137055078 system cpu ticks 28564934681 idle cpu ticks 17736327 IO-wait cpu ticks 2324 IRQ cpu ticks 7998142 softirq cpu ticks 0 stolen cpu ticks 39740382 pages paged in 71293969233 pages paged out 14159 pages swapped in 73239 pages swapped out 2381549755 interrupts 1089236704 CPU context switches 1446432805 boot time 2733476 forks catalina.sh: CATALINA_OPTS='-Xms2g -Xmx2g -XX:PermSize=500M -XX:MaxPermSize=500M -Xss256K -XX:+DisableExplicitGC -XX:SurvivorRatio=1 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=0 -XX:+CMSClassUnloadingEnabled -XX:LargePageSizeInBytes=128M -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=80 -XX:SoftRefLRUPolicyMSPerMB=0 -Dcom.sun.management.jmxremote -Djava.rmi.server.hostname=10.241.14.80 -Dcom.sun.management.jmxremote.port=60108 -Djava.net.preferIPv4Stack=true -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false' server.xml: tanming1...@163.com
