25

【实操】KVM虚拟机的优化历程---按需优化-Matbe

 5 years ago
source link: http://blog.51cto.com/13659253/2155962
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
一、KVM为什么要调优性能的损耗是矛盾的根源,KVM采用全虚拟化技术,全虚拟化要由一个软件来模拟硬件层,故有一定的损耗,特别是I/O输入输出。KVM性能优化主要在CPU、内存、I/O这几方面,当然在这几方面也是要分场景的,不同场景优化方向也是不同的。二、KVM优化思路及步骤1、CPU优化要考虑CPU的数量问题,所有guestcpu的总数目不要超过物理机CPU总数目,如果超过,则将对性能带来严重影响

About Joyk


Aggregate valuable and interesting links.
Joyk means Joy of geeK