Title:
DYNAMIC INTERRUPT BALANCED MAPPING METHOD BASED ON CURRENT VCPU SCHEDULING STATE
Document Type and Number:
WIPO Patent Application WO/2015/106497
Kind Code:
A1
Abstract:
Disclosed in the present invention is a dynamic interrupt balanced mapping method based on a current VCPU scheduling state: when a virtual I/O APIC of an SMP virtual machine has received a virtual interrupt, and this virtual interrupt needs to be mapped to a VCPU of the virtual machine, on the basis of the scheduling states in a VMM scheduler of every VCPU of the current VM, parse out those VCPUs in an active state, and map the virtual interrupt to the active VCPU to acquire a lower interrupt processing latency. If a plurality of VCPUs are in an active state at the same time, then the interrupt load of each VCPU is further considered, and the interrupt is mapped to the active VCPU having the current lowest load, further ensuring balance of the interrupt processing load between the VCPUs, such that the VCPU load in the SMP structure is more symmetrical and balanced overall performance of each VCPU in the SMP structure is thereby enhanced.
Inventors:
GUAN HAIBING (CN)
LI JIAN (CN)
MA RUHUI (CN)
ZHU MINJUN (CN)
ZHOU FANFU (CN)
LI JIAN (CN)
MA RUHUI (CN)
ZHU MINJUN (CN)
ZHOU FANFU (CN)
Application Number:
PCT/CN2014/075253
Publication Date:
July 23, 2015
Filing Date:
April 14, 2014
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
G06F9/45
Foreign References:
| US20110202699A1 | 2011-08-18 | |||
| CN101354663A | 2009-01-28 | |||
| CN101382923A | 2009-03-11 |
Attorney, Agent or Firm:
SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
上海旭诚知识产权代理有限公司 (CN)
上海旭诚知识产权代理有限公司 (CN)
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