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A memory bottleneck refers to a memory shortage due to insufficient memory, memory leaks, defective programs or when slow memory is used in a fast processor system. A memory bottleneck affects the machine’s performance by slowing down the movement of data between the CPU and the RAM. The increased processing times lead to slow computer operations.
A memory bottleneck occurs when running applications require more memory than the available physical RAM. Operating systems such as Windows use virtual memory on the hard disk to accommodate the memory requirements for all the running applications.
The least-used memory areas occupied by inactive open programs are stored in the paging file and are then retrieved into the physical memory when the program becomes active. Since hard drives are much slower than RAM, accessing this information is slower, which is one of the causes of memory-based reduced performance.
Bottlenecks result from simultaneous or excessive access to shared resources such as the memory, and are likely to occur when:
Memory bottlenecks are usually identified by memory errors such as in the following cases:
Memory bottlenecks can be resolved using various methods such as: