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In the world of Linux, efficient management of swap space is a crucial aspect of maintaining optimal system performance, especially in server environments or systems with limited physical memory (RAM). Swap space acts as an overflow area that the system can use when RAM is fully utilized. In this blog, we will delve into what swap space is, how to manage it, and best practices for its filesystem management. Swap space in Linux is a type of disk storage that is used to store data from RAM that is not actively being used. This process allows the system to free up RAM for more immediate tasks. Swap space can be created either as a dedicated swap partition or as a swap file.