What is Desktop heap and how it can improve performance of DataStage job?

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  1. In windows anything you create as a desktop object has got some amount of memory attached to it which is known as single desktop heap. The desktop heap is responsible for storing user interface objects, for example menus (Start for example) and windows (any new Window). When we run any application which needs to create these kind of interface object it needs space (in general terms, however it does have a process by which it allocates the area.) which goes from Desktop heap. In normal scenarios no one bother about how much Desktop heap has been configured in the system. The interesting thing here is if the application does not require any kind of interface objects it will not allocate the area from heap. The value which we are changing here is related to non interactive desktop which is related to services. So we are allowing more heap size in our environment so that while running services it should not exhaust

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