See also Notes Mac Os X El Capitan Cursors For Mac Windows 10 The most common words or phrases x can be replaced with include: The spinning wait cursor is commonly referred to as the (Spinning) x (of Death/Doom). ![]() Problems with the virtual memory system-such as slow paging caused by a spun-down hard disk or disk read-errors-will cause the wait cursor to appear across multiple applications, until the hard disk and virtual memory system recover.Applications thus afflicted rarely recover. ![]() Bugs in applications can cause them to stop responding to events for instance, an infinite loop or a deadlock.Another approach is to divide the work into smaller packets and use NSRunLoop or Grand Central Dispatch. However, this greatly increases the application complexity. Developers may prevent this by using separate threads for lengthy processing, allowing the application's main thread to continue responding to external events. If processing takes long, the application will appear unresponsive. By default, events (and any actions they initiate) are processed sequentially, which works well when each event involves a trivial amount of processing, the spinning wait cursor appearing until the operation is complete.
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