Ironically, the act of context switching adds a fair amount of overhead to the computing process. To ensure that the original running program does not lose all its progress, the computer must first save the current state of the CPU in memory before switching to the new program. Later, when...
Because of this asynchronous nature, it is imperative(必须) that all interrupt handlers be as quick and as simple as possible. As much as possible, work should be pushed out from the interrupt handler and performed in a bottom half, which runs at a more convenient time. [1]. The kernel ...
the computer must first save the current state of the CPU in memory before switching to the new program.Later, when switching back to the original, the computer must load the state of the CPU from memory
For ten configuration contexts, FPGAs without boosting can achieve 2%–35% lower power-delay product compared to boosted FPGAs if the context switching is performed every clock cycle and this advantage continues to rise as the number of configuration contexts is increased. Furthermore, FPGAs ...
A method for application managed CPU context switching. The method includes determining whether state data of a CPU is valid for a process. The determining is performed by the process itself. If the state data of the CPU is not valid for the process, the process accesses functional hardware ...
A context switch is typically performed either by the operating system or by a user's program. For example, a context switch may occur as a result of calling a subroutine within a user's program, in which the calling program's context is saved in a storage area, such as a stack when...
Context switching is an essential feature of multitasking operating systems. A multitasking operating system is one in which multiple processes execute on a single CPU seemingly simultaneously and without interfering with each other. This illusion ofconcurrencyis achieved by means of conte...
Like other tasks performed in hardware, one would expect this to be rather fast; however, mainstream operating systems, including Windows, do not use this feature. This is partly because hardware context switching does not save all the registers (only general-purpose registers, not floating-point...
Since this explicit context switching is biologically unrealistic, Gershman et al. suggested a latent cause model in which contexts act as latent causes that predict different reward contingencies31. When expected rewards do not occur, or unexpected rewards are delivered, the model infers that the ...
Switching context in a page, changing that page and subsequent pages content based on context. For example: A user is viewing assets for the Accouting department. There is an object list of assets, work requests regarding the assets, as well as other functionality regarding the assets of that...