![]() Simply using a different partition on the same drive will result in lots more head-seeking activity, as the drive jumps between the Windows and paging file partitions. Reality - "Moving the Paging File (pagefile.sys) to a different partition on the same physical hard disk drive does not improve performance. Myth - "Moving the Paging File to a different partition on the same drive improves performance." Virtual Memory is always in use, even when the memory required by all running processes does not exceed the amount of RAM installed on the system." In Windows systems, these "paged out" pages are stored in one or more files called pagefile.sys in the root of a partition. When the memory in use by all the existing processes exceeds the amount of RAM available, the operating system will move pages (4 KB pieces) of one or more virtual address spaces to the computer's hard disk, thus freeing that RAM frame for other uses. There can be a large number of processes each with its own 2 GB of private virtual address space. RAM is a limited resource, whereas virtual memory is, for most practical purposes, unlimited. In the default Windows OS configuration, 2 GB of this virtual address space are designated for each process' private use and the other 2 GB are shared between all processes and the operating system. application executables) running under 32 bit Windows gets virtual memory addresses (a Virtual Address Space) going from 0 to 4,294,967,295 (2*32-1 = 4 GB), no matter how much RAM is actually installed on the computer. Only core parts of the operating system kernel bypass this address translation and use real memory addresses directly. "In modern operating systems, including Windows, application programs and many system processes always reference memory using virtual memory addresses which are automatically translated to real (RAM) addresses by the hardware. Some applications (e.g., Adobe Photoshop) will display warnings on startup if no paging file is present." Even worse, just a few such programs can bring a machine loaded with memory to a halt. If no paging file (pagefile.sys) is present, a memory-hogging application can quickly use a large chunk of RAM. When certain applications start, they allocate a huge amount of memory (hundreds of megabytes typically set aside in virtual memory) even though they might not use it. Reality - "You gain no performance improvement by turning off the Paging File. ![]() Myth - "Disabling the Paging File improves performance." Do you guys agree with the following, taken from a page on Lockergnome: ![]()
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