Symmetric multiprocessing: Difference between revisions

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Unlike current SMP architectures, the vSMP Companion core is OS transparent meaning that the operating system and the running applications are totally unaware of this extra core but are still able to take advantage of it. Some of the advantages of the vSMP architecture includes cache coherency, OS efficiency, and power optimization. The advantages for this architecture are explained below:

*Cache Coherencycoherency: There are no consequences for synchronizing caches between cores running at different frequencies since vSMP does not allow the Companioncompanion core and the main cores to run simultaneously.

*OS Efficiencyefficiency: It is inefficient when multiple CPU cores are run at different asynchronous frequencies because this could lead to possible scheduling issues.{{How|date=August 2017}} With vSMP, the active CPU cores will run at similar frequencies to optimize OS scheduling.

*Power Optimizationoptimization: In asynchronous clocking based architecture, each core is on a different power plane to handle voltage adjustments for different operating frequencies. The result of this could impact performance.{{How|date=August 2017}} vSMP technology is able to dynamically enable and disable certain cores for active and standby usage, reducing overall power consumption.

These advantages lead the vSMP architecture to considerably benefit{{Peacock term|date=August 2017}} over other architectures using asynchronous clocking technologies.