Searching for Hardware Support Context Switching information? Find all needed info by using official links provided below.
https://wiki.osdev.org/Context_Switching
Hardware Context Switching. Some CPU's have a special mechanism to perform context switches in hardware. The following information gives details on 80x86 CPU's only. The hardware context switching mechanism (called Hardware Task Switching in the CPU manuals) can be used to change all of the CPU's state except for the FPU/MMX and SSE state.
https://en.wikipedia.org/wiki/Context_switch
Context switching can be performed primarily by software or hardware. Some processors, like the Intel 80386 and its successors, have hardware support for context switches, by making use of a special data segment designated the task state segment or TSS.
http://www.linfo.org/context_switch.html
Oct 25, 2004 · Intel 80386 and higher CPUs contain hardware support for context switches. However, most modern operating systems perform software context switching, which can be used on any CPU, rather than hardware context switching in an attempt to obtain improved performance. Software context switching was first implemented in Linux for Intel-compatible ...
https://shobhitsharda.wordpress.com/2011/05/31/context-switch-software-vs-hardware-approach/
May 31, 2011 · Performance being the main target of any operating system, software context switch is widely used in most modern operating system. Moreover, 64bit architecture does not support hardware context switches and are reliable only on software context switching. Hope it helps.!! đŸ™‚Author: Shobhit Sharda
https://www.osti.gov/doepatents/biblio/1187936
A device for supporting hardware enabled performance counters with support for context switching include a plurality of performance counters operable to collect information associated with one or more computer system related activities, a first register operable to store a memory address, a second ...
https://www.allinterview.com/showanswers/8208/what-is-context-switch.html
Context-switch time is overhead; the system does no useful work while switching The more complex the OS and the PCB -> longer the context switch Time dependent on hardware support Some hardware provides multiple sets of registers per CPU -> multiple contexts loaded at once
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