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Is it recommended to disable virtual memory when your system has 4 GB of RAM or more?
Wiki User
∙ 15y ago
No it is not recommended. Always keep a VRAM. The system very often expects it to work properly as you never now how much memory a program might use. Some operating system (like Linux) can surely cope without it but it is not recommended. Actually, it is impossible to disable virtual memory in any modern system. You can disable the pagefile but this will not disable virtual memory. Virtual memory is NOT the pagefile, it is a system the includes physical RAM and almost every file on your hard disk. The pagefile was designed to improve performance by temporarily storing rarely used data, thus leaving more RAM available for more important uses. Unless you have a very specific need and you understand what you are doing it is best to leave pagefile settings on default. Windows designers know more about the pagefile and memory management than you do. In all modern Windows systems every process is assigned a 4GB virtual address space. The lower 2GB is private to the process while the upper 2GB is used by the system. Note: this is a virtual address space and is completely independent of how much RAM is in the system. Also note, the lower 2GB is private, it is not shared with other processes. RAM is asigned to a process's addres space according to need and availability. A typical system might have 30 or processes running at one time. Since each one has a 2GB virtual address space you have a potential RAM usage of 30 x 2GB + 2GB system for a total of 62 GB! Still think you don't need virtual memory?
Wiki User
∙ 15y ago
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What happens if you have no virtual memory?
If you are using a modern version of Windows (Windows 95 or latter) you will be using virtual memory. Virtual memory is NOT the pagefile and it is not an extension to physical RAM but a system that is completely integrated into the system. Applications access virtual memory exclusively, no exceptions, ever. You can not disable virtual memory. You can disable the pagefile (not recommended) but this will not disable virtual memory. The system provides a virtual environment to processes that is completely independent of how much RAM is in the system. This is an advanced system that provides many important advantages to applications and users.
What is virtual memory and how the system controls the situation in the absence of it?
What is virtual memory and how the system controls the situation in the absence of it?
How do you delete virtual memory?
Don't delete the virtual memory. It is essential to the running of your operating system.
What is deffernce between virtual and physical memory?
The difference between virtual and physical memory is that virtual memory refers to memory space while physical memory are chips like RAM. The memory space for virtual memory is made by operating system when there is insufficient physical memory.
When does the operating system creates virtual memory?
when the actual memory is full
What operating system doesn't use virtual memory?
As per my memory these OS Ferrodo, Linux, centos won't operate virtual memory.
What is the use of virtual memory?
Virtual memory is used to increase the size of working memory in the system main memory by using the locations in secondary storage such as harddisk.
The salesperson offers you a one time special 10mb of virtual memory for 100 Are you buying?
The salesperson obviously hasn't got a clue what virtual memory is - or you misunderstood him. Virtual memory is a system that is integral to the computer system, not something that can be added.
Does freeing up memory improve computer performance?
Computers operate best when they have "system memory" free and are not relying on virtual memory (which uses a hard drive as additional system memory). If you have a system with 1GB of installed system memory, and you are using 1.25GB of allocated memory, then freeing up 0.25GB of used system memory would improve performance by reducing virtual memory usage. Conversely, if you have 2.0GB of installed memory, and you are using 1.25GB of allocated memory, then freeing 0.25GB of used memory would have no appreciable effect since virtual memory is not being used by the system. Final answer: If you are using virtual memory, then freeing enough memory to eliminate the virtual memory usage will improve performance, but freeing up more than that amount will have no appreciable effect.
How much space is reserved for virtual memory on different computers?
The space reserved for virtual memory varies on different computers. It depends on the operating system in use and how much system memory is available.
What is the difference between swap and virtual memory?
Swap slices are used as virtual memory storage areas when the system does not have enough physical memory to handle current processes. The virtual memory system maps physical copies of files on disk to virtual addresses in memory. Physical memory pages which contain the data for these mappings can be backed by regular files in the file system, or by swap space. If the memory is backed by swap space it is referred to as anonymous memory because there is no identity assigned to the disk space backing the memory.
Why cant you use all of your systems memory to run a virtual machine?
You can't use all of your system memory to run a virtual machine because then there wouldn't be enough memory for the Operating System that's running the virtual machine to function. For instance, if you have 4 GB of system memory total, and your operating system needs at least a quarter of that (1 GB) to function, then your virtual machine maximum memory would be 3 GB.
