A resource access method applied to computer and computer

Abstract

The embodiment of the present invention discloses a resource access method using a computer and the computer, wherein the resource access method includes: the resource controller receives a resource access request sent by a virtual machine for a resource, the resource access request carries a virtual address of the resource, and the resource access request of the virtual machine identification; use the identification of the virtual machine to convert the resource virtual address into the resource physical address according to the preset resource information mapping relationship; use the resource physical address to update the resource virtual address in the resource access request; send the updated resource access request to The resource to be accessed corresponding to the physical address of the resource, so as to access the resource to be accessed. By adopting the invention, the resource controller in the computer is used to realize resource virtualization and improve the operation performance of the virtual machine.

Description

Technical field [0001] The present invention relates to the field of computers, and more particularly to a computer resource access method applied to a computer. Background technique [0002] In computer technology, virtualization (Virtualization) is a resource management technique, it is an abstract various entities will be the computer's resources (such as processor, memory, storage and network IO, etc.), presented after conversion to break the physical resources barriers between non-cleavable, allowing users to configure than the original better way to use these resources. Use of virtualization technology in a single hardware platform can simulate a plurality of independently operated hardware environment, so that a platform to run multiple operating systems, and applications can be run independently of each other and independent of each other within the interval, thereby significantly improving the computer productivity. [0003] In the current virtualization technology, virt...

AI Technical Summary

Problems solved by technology

However, some recent studies have shown that even with a hardware-assisted VMM solution, there is still a performance degradation when running a program in a VM compared to running a program on a real machine

For example, VMware ESXI with good performance will also bring an average performance drop of 5.4% to the program, and the Encryption benchmark with the worst performance drop even has an 18% performance drop; Xen and KVM also have an average performance drop of 8.8% and 19.8% respectively

Therefore, although the use of virtualization technology saves infrastructure costs, it brings additional software costs and performance degradation, making the unit load cost worse than directly deploying corresponding web applications on real machines

[0006] In addition, since the current VMM is written by software, the operation of the VMM needs to occupy certain hardware resources, and it may also cause the Cache and TLB (Translation Lookaside Buffer, TLB for short) to be frequently accessed, thus affecting the application. Compared with the performance of the program on the physical machine, how to improve the performance of running in the VM is a hot research topic at present

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