jvm-arguments

This concerns Intellij from 9 to 11. In the IDEA window On the bottom right corner I see the current memory usage, typically "224M of 254M" How do I give more memory to Idea so it may read like "224M of 512M" ? Thank you. On Mac, $IDEA_HOME/Contents/Info.plist ~: grep --context=5 Xmx /Applications/Maia-IU-94.426.app/Contents/Info.plist <string>true</string> <key>apple.awt.fullscreencapturealldisplays</key> <string>false</string> </dict> <key>VMOptions</key> <string>-Xms128m -Xmx912m -Dfile.encoding=UTF-8 -XX:MaxPermSize=250m -ea -agentlib:yjpagent=disablej2ee,disablecounts,disablealloc

I have a performance-critical method called often when my app starts up. Eventually, it gets JIT-compiled, but not after some noticeable time being run in the interpreter. Is there any way I can tell the JVM that I want this method compiled right from the start (without tweaking other internals with stuff like -XX:CompileThreshold )? The only way I know of is the -Xcomp flag, but that is not generally advisable to use. It forces immediate JIT compilation of ALL classes and methods first time they are run. The downside is that you will see a performance decrease on initial startup (due to

The default JVM parameters are not optimal for running large applications. Any insights from people who have tuned it on a real application would be helpful. We are running the application on a 32-bit windows machine, where the client JVM is used by default . We have added -server and changed the NewRatio to 1:3 (A larger young generation). Any other parameters/tuning which you have tried and found useful? [Update] The specific type of application I'm talking about is a server application that are rarely shutdown, taking at least -Xmx1024m. Also assume that the application is profiled already.

I'm working with a system where a number of jobs, implemented as Java applications, can be started simultaneously. Each job runs in a separate JVM. Some of these jobs require bigger permgen size than others. However, it is not feasible to allow all jobs to use the maximum value, as the OS memory is limited. Therefore, I want to specify -XX:MaxPermSize for every job. Currently, the jobs are running without any -XX:MaxPermSize argument, so they must be using the default value. But how can I find out what the default value is? I have seen Default values for Xmx, Xms, MaxPermSize on non-server

I created a java-based website on Azure, and selected tomcat as container when used "CUSTOM CREATE", then there is an empty website ready and I can upload WAR files using ftp but not able to touch tomcat files. I need change the heap size of JVM, how to do that? please see http://azure.microsoft.com/en-us/documentation/articles/web-sites-java-custom-upload/ - see section "Tomcat". You could either upload your own tomcat as mentioned in this link OR you can just configure httpPlatform section in your web.config to override the JAVA_OPTS with any jvm parameter you want. Thanks. 来源： https:/

How /where are the jvm options used by the pyspark script when launching the jvm it connects to specified? I am specifically interested in specifying jvm debugging options e.g. -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 Thanks. pyspark uses the bin/spark-class script to start the client that you see running in your terminal / console. You can just append whatever options necessary to JAVA_OPTS : JAVA_OPTS="$JAVA_OPTS -Xmx=2g -Xms=1g -agentlib:jdwp=transport=dt_socket,server=y..." 来源： https://stackoverflow.com/questions/29478112/specify-options-for-the-jvm-launched-by