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PageDefrag runs on Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003. Though the website erroneously [ 1 ] says "runs on Windows XP (32-bit) and higher (32-bit), Windows Server 2003 (32-bit) and higher (32-bit)", the tool cannot defragment the pagefile on Windows Vista, Windows 7, or Server 2008; it is able to defragment ...
Windows uses the paging file as temporary storage for the memory dump. When the system is rebooted, Windows copies the memory dump from the page file to a separate file and frees the space that was used in the page file. [14]
Pages in the page cache modified after being brought in are called dirty pages. [5] Since non-dirty pages in the page cache have identical copies in secondary storage (e.g. hard disk drive or solid-state drive), discarding and reusing their space is much quicker than paging out application memory, and is often preferred over flushing the dirty pages into secondary storage and reusing their space.
File system fragmentation has less performance impact upon solid-state drives, as there is no mechanical seek time involved. [10] However, the file system needs to store additional metadata for each non-contiguous part of the file. Each piece of metadata itself occupies space and requires processing power and processor time.
A page, memory page, or virtual page is a fixed-length contiguous block of virtual memory, described by a single entry in a page table.It is the smallest unit of data for memory management in an operating system that uses virtual memory.
In computing, a page fault is an exception that the memory management unit (MMU) raises when a process accesses a memory page without proper preparations. Accessing the page requires a mapping to be added to the process's virtual address space.
In particular, this includes the registry, page file and hibernation file. Prior to the Windows Vista release, only one volume could be analyzed or defragmented at a time and only one instance could run. [8] Only local volumes can be defragmented; network volumes are not supported. [8] The GUI version prior to Windows Vista cannot be scheduled.
February 2024) (Learn how and when to remove this message) File deletion is the removal of a file from a computer's file system . All operating systems include commands for deleting files ( rm on Unix and Linux , [ 1 ] era in CP/M and DR-DOS , del / erase in MS-DOS / PC DOS , DR-DOS, Microsoft Windows etc.).