摘要:
The invention is directed towards a system and method that utilizes external memory devices to cache sectors from a rotating storage device (e.g., a hard drive) to improve system performance. When an external memory device (EMD) is plugged into the computing device or onto a network in which the computing device is connected, the system recognizes the EMD and populates the EMD with disk sectors. The system routes I/O read requests directed to the disk sector to the EMD cache instead of the actual disk sector. The use of EMDs increases performance and productivity on the computing device systems for a fraction of the cost of adding memory to the computing device.
摘要:
A method and apparatus is provided that provides a reliable diskless network-bootable computers using a local non-volatile memory (NVM) cache. The NVM cache is used by the computer when the network is temporarily unavailable or slow. The cache is later synchronized with a remote boot server having remote storage volumes when network conditions improve. It is determined if data is to be stored in the NVM cache or the remote storage volume. Data sent to the remote storage volume is transactionally written and the data is cached in the NVM cache if a network outage is occurring or a transaction complete message has not been received. The data stored in the NVM cache allows the user to continue operating during network outages and the computer can be cold-booted using the data in the NVM cache if the network is unavailable.
摘要:
Virtual surface techniques are described. These techniques include support of initialization and batching of updates, use of updates and lookaside lists, the use of gutters, the use of blending and BLT operations, surface optimization techniques such as push down as well as enumeration and clumping, mesh usage, and occlusion management techniques.
摘要:
Virtual surface techniques are described. These techniques support the use of initialization and batching of updates, use of updates and lookaside lists, use of gutters, blending and BLT operations, use of surface optimization techniques such as push down as well as enumeration and clumping, mesh usage, and use of occlusion management techniques.
摘要:
Virtual surface update and composition techniques are described. These techniques support the use of initialization and batching of updates, use of updates and lookaside lists, use of gutters, blending and BLT operations, use of surface optimization techniques such as push down as well as enumeration and clumping, mesh usage, and use of occlusion management techniques.
摘要:
An event, such as a vertical blank interrupt or signal, received from a display adapter in a system is identified. Activation of a timer-driven animation routine that updates a state of an animation and activation of a paint controller module that identifies updates to the state of the animation and composes a frame that includes the updates to the state of the animation are aligned, both being activated based on the identified event in the system.
摘要:
Various embodiments provide approaches for measuring the rendering times of a webpage that can be browser-independent. In at least some embodiments, as a web page is rendered, video data of the webpage is captured and analyzed to ascertain when the webpage, or portions thereof, have likely been completely rendered. In at least some embodiments, image processing can be performed on captured video data to ascertain, from observed pixel changes over time, when the webpage has likely been rendered.
摘要:
A proactive, resilient and self-tuning memory management system and method that result in actual and perceived performance improvements in memory management, by loading and maintaining data that is likely to be needed into memory, before the data is actually needed. The system includes mechanisms directed towards historical memory usage monitoring, memory usage analysis, refreshing memory with highly-valued (e.g., highly utilized) pages, I/O pre-fetching efficiency, and aggressive disk management. Based on the memory usage information, pages are prioritized with relative values, and mechanisms work to pre-fetch and/or maintain the more valuable pages in memory. Pages are pre-fetched and maintained in a prioritized standby page set that includes a number of subsets, by which more valuable pages remain in memory over less valuable pages. Valuable data that is paged out may be automatically brought back, in a resilient manner. Benefits include significantly reducing or even eliminating disk I/O due to memory page faults.
摘要:
A computer with a platform that reduces cross-platform compatibility issues associated with executable computer components. A context for a component to be executed on a computer is detected. The context may be detected by searching metadata associated with the component and locating the context therein. If the context is not found in the metadata, then a context may be inferred in other ways, such as from a subsystem major/minor version. Execution of the component invokes one or more components of a computer operating system that provides a platform for executing operations that support execution of the component. Branch components present in the platform are used to select behaviors for the operations based at least in part on the detected context of the component. By providing a context-based selection from any of multiple targeted behaviors for an operation performed by the platform, cross-platform compatibility is improved.
摘要:
Techniques for hardware accelerated caret rendering are described in which a system based caret is emulated using hardware acceleration technology. The hardware accelerated caret can be rendered using dedicated graphics processing hardware to look and feel like a system caret. This can involve using pixel shaders to produce the hardware accelerated caret and a employing a back-up texture to remove the caret after it is drawn and cause the caret to blink. In addition, rendering of the caret can be coordinated with other animations and/or other presentations of a frame buffer to piggy back drawing of the caret onto other drawing operations. This can reduce the number of times the frame buffer is presented and therefore improve performance.