It is basically an area of memory used for dynamic memory allocation. Ok, now what is Heap? A heap is a form of data structure that is similar to a tree. Other objects on the heap reachable from the GC roots are considered to be live objects, and ineligible for garbage collection, the objects that are unreachable can be marked for reclamation. GC Roots therefore are always ineligible for collection.
If an object is always reachable, then it is not eligible for garbage collection. Garbage Collection (GC) Roots are the objects that are always reachable. If the cache grows increasingly to cause problems, this may be a programming or design error, but is not a memory leak as the information is not used much. Applications may store some amounts of information in memory in form of cache. A memory leak is the result of a programming bug, so it is very important to test it during development phase.Īlso, a constantly increasing memory usage is not necessarily evidence of a memory leak. For a program that is frequently opened or that runs continuously, even a very small memory leak can eventually cause the program to terminate. As a result, the available memory for that application drains out completely and the programs can no longer function. In simple language a memory leak is loss of available memory when a program fails to return memory that it has obtained for temporary use.
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