How do you fix initial heap size set to a larger value than the maximum heap size?

How do you fix initial heap size set to a larger value than the maximum heap size?

[Fixed] Initial heap size set to a larger value than the maximum heap size. To get rid of this error, the value of Xmx(maximum heap size) should always be greater than or equal to Xms(minimum heap size).

Is it good to set the max and min JVM heap size the same?

AFAIK, setting both to the same size does away with the additional step of heap resizing which might be in your favour if you pretty much know how much heap you are going to use. Also, having a large heap size reduces GC invocations to the point that it happens very few times.

Should XMX and XMS be the same?

Setting -Xms and -Xmx to the same value increases predictability by removing the most important sizing decision from the virtual machine. However, the virtual machine is then unable to compensate if you make a poor choice.

How do you set the maximum and minimum value of JVM memory?

The short answer is that you use these java command-line parameters to help control the RAM use of application:

1. Use -Xmx to specify the maximum heap size.
2. Use -Xms to specify the initial Java heap size.
3. Use -Xss to set the Java thread stack size.

What is initial heap size and maximum heap size?

Initial heap size is 1/64th of the computer’s physical memory or reasonable minimum based on platform (whichever is larger) by default. Maximum heap size is 1/4th of the computer’s physical memory or 1 GB (whichever is smaller) by default. The maximum heap size can be overridden using -Xmx.

How do I change my max heap size?

To increase the Application Server JVM heap size

1. Log in to the Application Server Administration Server.
2. Navigate to the JVM options.
3. Edit the -Xmx256m option. This option sets the JVM heap size.
4. Set the -Xmx256m option to a higher value, such as Xmx1024m.
5. Save the new setting.

What is the maximum XMX value?

512 MB
The Xmx value is half the available memory with a minimum of 16 MB and a maximum of 512 MB.

How is Max heap size calculated?

In above environment, JVM allocated following default values :

1. Java heap size. InitialHeapSize = 64781184 bytes (61.7M) and MaxHeapSize = 1038090240 bytes (990M).
2. PermGen Size. PermSize = 21757952 bytes (20.75M), MaxPermSize = 174063616 bytes (166M)
3. Thread Stack Size. ThreadStackSize = 1024 kilobytes (1M)