The time at which a block of file data is flushed is partially based on the amount of time it has been stored in the cache and the amount of time since the data was last accessed in a read operation.
This ensures that file data that is frequently read will stay accessible in the system file cache for the maximum amount of time. As depicted by the solid arrows in the preceding figure, a KB region of data is read into a KB cache slot in system address space when it is first requested by the Cache Manager during a file read operation. A user-mode process then copies the data in this slot to its own address space. When the process has completed its data access, it writes the altered data back to the same slot in the system cache, as shown by the dotted arrow between the process address space and the system cache.
When the Cache Manager has determined that the data will no longer be needed for a certain amount of time, it writes the altered data back to the file on the disk, as shown by the dotted arrow between the system cache and the disk. Skip to main content. This browser is no longer supported.
Once the data is lost from a RAM disk, its gone forever, never to be recovered ever again by using any of the world's data recovery software. My hard drive has only a few megabytes left, but would a RAM disk solve the lack of storage space problem? My hard drive currently has 7. This would really help out users better manage their disk space in a more effective way, and to avoid using Disk Cleanup too often.
ImDisk is one third party utility that can create a RAM disk without a disk size capacity limit. Deleted files that goes into the Windows Recycle Bin should also be moved into a RAM disk drive for users who hate to frequently empty the Recycle Bin.
So, when the computer is restarted or turned off, all of the data files and folders that are in the RAM disk drive will be lost permanentally. Read here on how to save disk space by using the Disk Cleanup utility that is built-in to Windows 7 and Windows The explained way on Saving Disk Space in Windows the effective way.
Was this discussion helpful? Yes No. But regardless of the amount of installed physical memory in your system, there are always things you can do to improve virtual memory performance. Windows' defaults here are rather conservative and can fortunately be modified for better performance. It's important to realize, though, that some experimentation may be required to achieve the best configuration for your setup.
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