What is the difference between -XX:MaxPermSize and -XX:MaxMetaspaceSize options in terms of memory settings? The difference between -XX:MaxPermSize and -XX:MaxMetaspaceSize is largely moot. -XX:MaxPermSize was for sizing the old "permanent generation" (PermGen) heap. This was removed in Java 8. XX:MaxMetaspaceSize is for sizing the new "Metaspace" off-heap memory space that is used by the JVM ...
-XX:MaxPermSize=size Sets the maximum permanent generation space size. This option was deprecated in JDK 8, and superseded by the -XX:MaxMetaspaceSize option. Sizes are expressed in bytes. Append the letter k or K to indicate kilobytes, m or M to indicate megabytes, g or G to indicate gigabytes. References: How is the java memory pool divided?
The current settings for the JVM is below: JAVA_OPTS="-Xms1303m -Xmx1303m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m" Since we are getting java.lang.OutOfMemoryError: Metaspace we have planned to increase the -XX:MaxMetaspaceSize size.
You are not alone in fixing stop-the-world GC events by setting the -XX:+DisableExplicitGC flag. Unfortunately (and in spite of the disclaimers in the documentation), many developers decide they know better than the JVM when to collect memory and introduce exactly this type of issue. I'm aware of many instances where the -XX:+DisableExplicitGC improved the production environment and zero ...
Memory is the ability to recall learned information. Many parts of your brain work together to encode, store and retrieve a memory.
Memory: What It Is, How It Works & Types - Cleveland Clinic
Recent functional imaging studies detected working memory signals in both medial temporal lobe (MTL), a brain area strongly associated with long-term memory, and prefrontal cortex (Ranganath et al. 2005), suggesting a strong relationship between working memory and long-term memory.