If too many non-essential tasks are upgraded to higher priority levels, your computer might start freezing up or even crash outright. If every process is running at High, how is the operating system to determine which processes are truly essential? On the flip side, too many tasks pushed to a higher priority level defeat the very purpose of there being a hierarchy in the first place. Tasks with a higher priority are given preference in the allocation of system resources like CPU time and memory, allowing them to run faster. Setting a new priority of a process modifies its place in the processing queue. What Is the Effect of Setting the Priority of a Task? Priority levels higher than that should be left to system processes and the lower levels for unimportant background tasks. The normal and above normal are really the only two priority levels you should use for everyday tasks. Running applications on this priority level can easily crash your computer. For this reason, this level is only reserved for hardware interfacing processes. Basically, tasks on this level run in real-time, at the expense of any and every other process.
Realtime is the highest possible priority level in Windows. High is a priority level used by important system processes necessary for the smooth functioning of the computer. Use this for processes that need a little boost but don’t need to upstage system processes. Above normal is the next higher priority level after normal. Tasks operating at this level are given resources only after all other processes have completed their current tasks. Low is the lowest priority level in Windows. Best suited for unimportant tasks with no time constraints. Processes on this level are allocated fewer resources than normal applications. Below normal is the priority level just below normal. Normal is, well, the ‘normal’ priority level. Like a ranking system, this orders processes from the top to bottom, in the order of their importance. Process priority is defined in multiple discrete levels. This ensures that even under the maximum load, the core capabilities of your PC are not affected. Tasks that are essential for the smooth running of your computer (mostly system processes) are accorded a higher priority than an application running on top. Process priority is simply the ‘importance’ of each process. To maintain a facade of running in real-time, your computer has to choose which tasks to give precedence to, giving rise to a priority system. When your operating system is running multiple programs (or just background services) simultaneously, it is actually juggling among them.Įven in multi-core processors, there are only so many threads that can be run at once, so rationing processor time becomes quite important. What Is Process Priority and Why Is It Important?Ĭomputers aren’t multitaskers.
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