This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.

This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.

Performance Tuning

/Tag:Performance Tuning

Analyzing Out-of-Memory Situations

By | February 24th, 2015|GlassFish, JBoss, Other Middlewares, Performance Tuning, Tomcat, WebLogic Server, WebSphere|

Out Of Memory - Types, Causes, Analysis ---------------------------------------------------------------------------------------------------------------------------------------- At any time the JVM may run out of memory, which effectively crashes the container and will require a restart to restore functionality. There are many causes for out of memory exceptions. From too small of a heap defined for the applications running in the container, a [...]

Troubleshooting Missing Execute Threads in Weblogic

By | March 1st, 2013|Performance Tuning, Realtime Issues, WebLogic Server|

Take a thread dump and determine if there are any threads missing. You should refer to your config.xml file to determine how many execute threads you should see in the thread dump. If no WebLogic threads are missing, you will need to determine if any application created threads are missing. In some situations, the problem has been [...]

Garbage Collection Tuning Tips

By | January 23rd, 2013|Performance Tuning, Realtime Issues, WebLogic Server|

The heap size influences the following: – The GC frequency and the pause during collections – The number of short and long term objects – Fragmentation and locality problems An undersized heap with the concurrent collector leads to full GCs with an increase in load and also fragmentation problems. An oversized heap leads to increased [...]

Analyzing Out of Memory Issues in Weblogic

By | January 23rd, 2013|Performance Tuning, Realtime Issues, WebLogic Server|

When the memory is insufficient for a deployed application, a java.lang.OutOfMemoryError is thrown. There will be different error messages for OutOfMemoryErrors in each type of memory. The Java Virtual Machine (JVM)has the following types of memory: Heap memory is the runtime data area from which memory for all class instances and arrays is allocated. When [...]

How to Troubleshoot when any application is running slow in Weblogic environment

By | January 23rd, 2013|Performance Tuning, Realtime Issues, WebLogic Server|

Application slowness could be due:  Memory Leak: If the application leaks large amounts of memory, then garbage collection may take place more frequently as the application attempts to free up space, thus causing the application to slow down  A deadlock causes the application or part of the application to become unresponsive. For example, if a [...]

How to Monitor HTTP Sessions from the WebLogic Console

By | February 9th, 2012|Performance Tuning, WebLogic Server|

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How to kill stuck thread in weblogic

By | February 7th, 2012|Performance Tuning, WebLogic Server|

Solution 1:  You cannot kill a Thread that is in STUCK state. The older Sun Java specifications used to have such ways are dealing with Threads: Thread.stop() / Thread.suspend() / Thread.resume() / Thread.runFinalizersOnExit() but definitely not exposed via JMX API. They deprecated these methods because of the risk involved since stopping a Thread is unlocking [...]

Good Programming Practices to avoid Memory Leak

By | January 30th, 2012|Performance Tuning, WebLogic Server|

The easiest way to avoid memory leaks is by not using dynamic allocations in the first place. If possible, the application should use automatic and static storage instead of dynamic memory. When dynamic memory allocation is unavoidable, remember to add a matching delete call for every object allocated by new. To prevent memory leak, the [...]

Manually request garbage collection in WebLogic

By | June 11th, 2011|Performance Tuning, WebLogic Server|

You can manually request that the JVM perform garbage collection. Make sure that full garbage collection is necessary before manually selecting it on a server instance. When you perform garbage collection, the JVM often examines every living object in the heap. To request garbage collection: 1). If you have not already done so, in the [...]