Thanks to this virtual memory, it is possible to start and use this program, but it will work slower than with the wealth of RAM. As soon as your system needs more RAM (for example, to load an application that has not been preloaded), it frees up the necessary memory as needed.īefore Windows 8.1, if an application needs to use, for example, 5 GB of memory, and the computer has only 4 GB of RAM, then Windows was forced to send 1 GB of this data to the paging file, which is on the hard disk. Do not worry, this is only about unused memory.
SysMain is the best option for the paging file, but this is not without a flaw, as the system will always use the processor cycle to gain access to compressed memory, which can slow down your computer.īy default, SysMain is designed to occupy all the available RAM space with preloaded applications.
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With Update Creators, this parameter is recorded in the Task Manager section as Memory Structure. In earlier versions of Windows 10, SysMain was referred to as SuperFetch and was associated with the “Sysytem” process, which was surprising that this process consumed large amounts of memory. Unlike the paging file (which you can enable, resize, disable, etc.), this option is enabled by default in Windows 10 and works without our intervention. As mentioned above, “Host Service: SysMain” is a new feature released with the release of Windows 10, which aims to become an alternative to the paging file, improving the overall performance of the computer.