In Config tool I am seeing below Heapsize parameters. -XX:MaxPermSize=512M -XX:PermSize=512M -Xms3072M -XX:NewSize=340M -XX:MaxNewSize=340M When I went to sap notes
In Priority Queue sort order is not stable if two elements that are in the same position as per the comparator will not necessarily be removed in the same order as they were inserted. Priority Queues are not bounded by the capacity meaning we cannot provide the size of the queue then it’...
The young generation uses a fast copying garbage collector which employs two semi-spaces (survivor spaces) in the eden, copying surviving objects from one survivor space to the second. Objects that survive multiple young space collections are tenured, meaning they are copied to the tenured generatio...
a binary heap is a specialized tree-based data structure that satisfies the heap property, where each parent node is greater than or equal to its children in a max-heap, or less than or equal to its children in a min-heap. a binary heap is a complete tree, meaning all levels except ...
Meaning that while idle, https://bugs.openjdk.org/browse/JDK-8204089 just shrink back the heap RSS to xmswe need 2 set of VM args to be passed:autotrim interval -> which requires something like -XX:+UnlockExperimentalVMOptions -XX:TrimNativeHeapInterval=5000...
connection on a specific node reached 20,000 at which point 10,000 would be moved to a swap file and the 10,000 highest priority would remain in heap. The default "back pressure object threshold" on a connection is 10,000 meaning that with defaults no connection would ever create a swap...
(with random access and with relative and absolute positioning) but without the limitations of physical memory size. Additionally,MappedByteBufferuses the underlying operating system for direct file and memory mapping, meaning you avoid large heaps and take advantage of the operating system’s highly ...
Here, we used b, meaning this dump file would be in binary format. The result will be the same if this parameter is not set. file It is the file to which the dump will be written. pid It denotes an id of the Java process. Note that we can use the jps command to get pid. ...
If the JVM fails withjava.lang.OutOfMemoryError: Direct buffer memory, then the problem is with thejava.nio.DirectByteBuffers, meaning that they are either too big, too numerous, or haven’t been GCed. Thus, they will hold too much native memory. You will need to collect a JVM heap ...
(2) what's the meaning of Handles in taskmgr.exe as compared to GDI/USERProcessHandleQuota ... [GDIProcessHandleQuota and USERProcessHandleQuota are used to set per-process limits for GDI objects and USER objects, respectively. This caps the number of objects that a single process can use...