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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. Furthermore, the actual page contents may need to be loaded from a back-up, e.g. a disk.
Similar displays in the Task Manager of Windows Vista and later have been changed to reflect usage of physical memory. In Task Manager's "Processes" display, each process's contribution to the "total commit charge" is shown in the "VM size" column in Windows XP and Server 2003. The same value is labeled "Commit size" in Windows Vista and later ...
ActiveMovie Control running on Windows 2000. ActiveMovie was the immediate ancestor of Windows Media Player 6.x, and was a streaming media technology now known as DirectShow, developed by Microsoft to replace Video for Windows. ActiveMovie allows users to view media streams, whether distributed via the Internet, an intranet or CD-ROMs.
Windows Media Player 7.0 and its successors also came with an wmplayer.exe stub, replacing each other but leaving Media Player and Windows Media Player 6.4 intact. Windows Me and Windows XP is the operating systems to have three different versions of Windows Media Player side by side.
It is required, however, for the boot partition (i.e., the drive containing the Windows directory) to have a page file on it if the system is configured to write either kernel or full memory dumps after a Blue Screen of Death. Windows uses the paging file as temporary storage for the memory dump.
Each VM has a separate shadow page table and the hypervisor is in charge of managing them. While shadow page tables are faster than double translation, they are still expensive compared to not running in a virtual machine: every time a guest updates its page tables, it requires the hypervisor to also manage changes in the shadow tables.
An ideal pre-paging scheme would mask large majority of network faults, although its performance depends upon the memory access pattern of the VM's workload. Post-copy sends each page exactly once over the network whereas pre-copy can transfer the same page multiple times if the page is dirtied repeatedly at the source during migration.
A newer version, 2.0, was included in Windows NT 4.0 SP3 in 1997. [3] Version 3.0 came out mid-1998. [2] The whole product line was renamed Windows Media in October, 1999, four months before Windows 2000 appeared. [2] The NetShow name is still carried on in the user-agent string in current versions of Windows Media Player, which reports as ...