Double-click the System icon. In the Virtual Memory dialog box, select a drive to store the paging file. Set Initial size MB and Maximum size.
Note: To have Windows select the best paging file size, click System managed size in the Virtual Memory dialog box. In the Performance Options dialog, under Virtual memory , click Change. In the Virtual memory dialog box, select a drive. Under Paging file size for selected drive , type new values for initial and maximum sizes for the disk.
Click Set , click OK twice. In the Performance Options dialog, click OK. Note: When the Virtual Memory dialog box is first displayed, it shows the initial and maximum page file sizes stored on each disk.
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Get notified about latest updates to this technical article? Yes No. However, you have to monitor your system to know whether they apply to your particular system or not.
In some cases, these statements are conclusions from specific Windows NT 4. Significant changes were made to Windows Server to reduce the probability that these architectural limits will in fact be reached in practice. For example, some processes that were in the kernel were moved to non-kernel processes to reduce the memory used in the shared virtual address space.
Performance Monitor is the principle tool for monitoring system performance and for identifying the location of the bottleneck. Here is a summary of some important counters and what they tell you:. This shows how many bytes were allocated by processes and to which the operating system has committed a RAM page frame or a page slot in the pagefile or perhaps both.
As Committed Bytes grows greater than the available RAM, paging will increase, and the pagefile size that is being used will also increase. At some point, paging activity starts to significantly affect performance. This value is always a multiple of 4,, which is the page size that is used in Windows.
As demand for virtual memory increases beyond the available RAM, the operating system adjusts how much of a process's virtual memory is in its Working Set to optimize available RAM usage and minimize paging.
Use this counter to determine whether the pagefile is an appropriate size. If this counter reaches , the pagefile is full, and things will stop working.
Depending on the volatility of your workload, you probably want the pagefile large enough so that it is no more than percent used. If much of the pagefile is being used, having more than one on different physical disks, may improve performance.
A high value for this counter does not necessarily imply that your performance bottleneck stems from a shortage of RAM. The operating system uses the paging system for purposes other than swapping pages because of memory over-commitment.
This is the best counter to monitor if you suspect that paging is your performance bottleneck. The sum of these counters is a measure of how much of the 2 GB of the shared part of the 4-GB virtual address space is actually being used.
Use these to determine whether your system is reaching one of the architectural limits discussed that were discussed earlier. Memory, Available MBytes: This counter measures how much RAM is available to satisfy demands for virtual memory either new allocations, or for restoring a page from the pagefile.
When RAM is in short supply for example, Committed Bytes is greater than installed RAM , the operating system will try to keep a certain fraction of installed RAM available for immediate use by copying virtual memory pages that are not in active use to the pagefile.
Therefore, this counter will not reach zero and is not necessarily a good indication of whether your system is short of RAM. Thank you. Was this reply helpful? Yes No. Sorry this didn't help. Thanks for your feedback. The paging file is an area on your hard disk that Windows uses like memory. This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread.
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