Method for dynamic interrupt balanced mapping based on current scheduling states of VCPUs

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United States of America Patent

PATENT NO 9697041
SERIAL NO

14412188

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Abstract

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The invention discloses a method for dynamic interrupt balanced mapping method based on the current scheduling states of VCPUs. When the virtual I/O APIC of an SMP virtual machine needs to map a virtual interrupt into a VCPU of the virtual machine after receiving the virtual interrupt, a part of VCPUs in the active state are analyzed according to the scheduling states of all VCPUs of the current VM in a VMM scheduler, and the virtual interrupt is mapped into the active VCPUs to obtain lower interrupt processing delay. If a plurality of VCPUs are in the active state simultaneously, the interrupt load of each active VCPU is considered further, and the interrupt is mapped into the active VCPU with the current lowest current load to further ensure balancing of interrupt processing loads of all VCPUs, and therefore, the loads of VCPUs in the SPMP structure are more symmetrical to promote balancing of the overall performance of all VCPUs in the SMP structure.

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Patent Owner(s)

Patent OwnerAddress
SHANGHAI JIAO TONG UNIVERSITY200240 NO 800 DONGCHUAN ROAD SHANGHAI MINHANG DISTRICT SHANGHAI CITY SHANGHAI CITY 200240

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guan, Haibing Shanghai, CN 18 74
Li, Jian Shanghai, CN 590 16324
Ma, Ruhui Shanghai, CN 12 45
Zhou, Fanfu Shanghai, CN 1 5
Zhu, Minjun Shanghai, CN 1 5

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