The Dovetail Games recommended (Microsoft documentation) method.Train Simulator also requires you to have a paging file and, without one set, it can directly affect the smooth running of the software.Īs regards what settings to use for your paging file, there are several schools of thought. A paging file can be read as a connected chunk of data from RAM, which is much faster than reading the data from multiple locations.Īll computers need a paging file, whether you have over 64 GB of System RAM, or just 4 GB, as Windows may need it for important processes that may not be immediately apparent. Additionally, operations that exceed your system's physical RAM space are automatically sent to the paging file to be stored to free up RAM. The paging file extends the RAM’s capacity, as it stores RAM data that has not been used or accessed lately. The paging file can expand the amount of system-committed memory, or virtual memory, that a system can utilise. One scenario that can cause this situation is when an application creates high-priority threads that cause the finalization queue to increase at a rate that is faster than the rate at which the finalizer thread is servicing that queue.Very often, the issue causing the Out of Memory Error message can be prevented simply by adjusting the minimum and maximum size settings of the Windows Paging File, which is part of the Windows operating system. If the finalizer thread cannot keep up, with the finalization queue, then the Java heap could fill up and this type of OutOfMemoryError exception would be thrown. In the Oracle Sun implementation, finalizers are executed by a daemon thread that services the finalization queue. Instead, after garbage collection, the objects are queued for finalization, which occurs at a later time. If a class has a finalize method, then objects of that type do not have their space reclaimed at garbage collection time. One other potential source of this error arises with applications that make excessive use of finalizers. Note: The APIs that are called by an application could also be unintentionally holding object references. This is the Java language equivalent of a memory leak. In other cases, and in particular for a long-lived application, the message might be an indication that the application is unintentionally holding references to objects, and this prevents the objects from being garbage collected. The problem can be as simple as a configuration issue, where the specified heap size (or the default size, if it is not specified) is insufficient for the application. This error does not necessarily imply a memory leak. Was it thrown because the Java heap is full, or because the native heap is full? To help you find the cause, the text of the exception includes a detail message at the end, as shown in the following exceptions.Ĭause: The detail message Java heap space indicates object could not be allocated in the Java heap. The exception can also be thrown by native library code when a native allocation cannot be satisfied (for example, if swap space is low).Īn early step to diagnose an OutOfMemoryError exception is to determine the cause of the exception. When a exception is thrown, a stack trace is also printed. In a rare instance, a may be thrown when an excessive amount of time is being spent doing garbage collection and little memory is being freed. Also, this error may be thrown when there is insufficient native memory to support the loading of a Java class. In this case, The garbage collector cannot make space available to accommodate a new object, and the heap cannot be expanded further. Usually, this error is thrown when there is insufficient space to allocate an object in the Java heap. One common indication of a memory leak is the exception. 3.2 Understand the OutOfMemoryError Exception
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