Showing posts with label Performance tuning. Show all posts
Showing posts with label Performance tuning. Show all posts
Wednesday, December 16, 2020

Reading the GC Events

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Real: wall clock time – time from start to finish of the call. User: the amount of CPU time spent in user-mode code (outside the kernel) w...
Sunday, October 29, 2017

Investigating Performance issue in Live Environment

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Take a thread dump when the issue is with CPU Go for heap dump if this is affecting high memory usage Replicate similar load testing i...
Monday, October 2, 2017

JVM Profiling

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JVM profiling in highly useful in identifying what in happening in JVM. There are many tools available for profiling. -Visual VM -...
Sunday, September 20, 2015

How to troubleshoot GC run

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https://www.facebook.com/100006792001047/videos/1717300525172998/ Memory setting is very important for a java application.If ...
Tuesday, July 17, 2012

Tomcat Performance Tunning

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In order to handle scalability, webserver needs to be controlled by certain configuration. In this post we wil take Tomcat as a web serv...
Sunday, June 17, 2012

Oracle Memory Tunning

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Licensing: select* from v$versions select * from v$license; SGA Info: show sga select * from v$sga; select * from v$sgainfo; ...
Sunday, April 29, 2012

JProfiler

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JProfiler is a java Applet Tool. Use with creating a new session or with already saved session. To create a new session    select ...

Production Performance tuning

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Go to unix location where tomcat is running su user pasword bash cd usr/jdk/bin # To know the java apache process pid ps -ef|grep j...