Data processing method, equipment and server

Abstract

The invention provides a data processing method. The method comprises: equipment in a server obtaining a first I / O request sent by a virtual machine, the device being connected with a server through ahigh-speed serial computer extension standard PCIe bus; the virtual machine running on a server, a device providing a plurality of virtual functions (VFs) to a server, wherein the first I / O request is initiated by the virtual machine for any one VF in the plurality of VFs, the first I / O request comprises a read operation or a write operation, the read operation is used for executing a data read operation on an I / O device of the server, and the write operation is used for executing a data write operation on the I / O device of the server; and the device reading or writing data from the I / O device of the server according to the first I / O request. According to the method, the I / O processing process can be optimized, the load of the processor of the server is reduced, and the I / O request of thevirtual machine is directly processed by the equipment, so that the virtualization I / O performance is further improved.

Description

technical field [0001] The present application relates to the field of servers, and more particularly, to a data processing method, device and server. Background technique [0002] In a virtualization scenario, a virtual input / output device (virtual input / output device, Virtio) on a virtual machine can be implemented in the following manner: [0003] Full virtualization (full virtualization) method, this method uses a virtual machine monitor (virtual machine monitor, VMM) to simulate Virtio implementation, VMM will intercept the I\O request initiated by the virtual machine, and simulate the real hardware through software. The VMM must handle all I / O requests initiated by the virtual machine, and then serialize all IO requests into a single I / O stream that can be processed by the underlying hardware. [0004] When Virtio in the virtual machine initiates an I\O request, operations involving context switching, such as switching between the kernel state and the user state, freq...

AI Technical Summary

Problems solved by technology

[0004] When Virtio in a virtual machine initiates an I\O request, operations involving context switching, such as switching between kernel mode and user mode, will frequently occur between the virtual machine and the server where the virtual machine is located, which has a great impact on I\O performance

[0005] In addition, when the VMM simulates multiple Virtios, the overhead of the central processing unit (CPU) in the server where the virtual machine is located increases and performance decreases

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