vsphere性能
vNUMA介绍
http://virtualbarker.com/
vSphere VMware Performance
With every release of vSphere the overhead of running an application on the vSphere virtualized platform is reduced by the new performance improving features. Typical virtualization overhead for applications is less than 10%. Many of these features not only improve performance of the virtualized application itself, but also allow for higher consolidation ratios. Understanding these features and taking advantage of them in your environment helps guarantee the highest level of success in your virtualized deployment. Table 6 provides details on vSphere VMware performance.
ESXitop Metric
|
Description
|
Implication
|
---|---|---|
NUMA Support |
ESX/ESXi uses a NUMA load-balancer to assign a home node to a virtual machine. Because memory for the virtual machine is allocated from the home node, memory access is local and provides the best performance possible. Even applications that do not directly support NUMA benefit from this feature. |
See The CPU Scheduler in VMware ESXi 5.1: http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.1.pdf |
Transparent page sharing |
Virtual machines running similar operating systems and applications typically have identical sets of memory content. Page sharing allows the hypervisor to reclaim the redundant copies and keep only one copy, which frees up the total host memory consumption. If most of your application virtual machines run the same operating system and application binaries then total memory usage can be reduced to increase consolidation ratios. |
See Understanding Memory Resource Management in VMware ESXi 5.1: http://www.vmware.com/files/pdf/perf-vsphere-memory_management.pdf |
Memory ballooning |
By using a balloon driver loaded in the guest operating system, the hypervisor can reclaim host physical memory if memory resources are under contention. This is done with little to no impact to the performance of the application. |
See Understanding Memory Resource Management in VMware ESXi 5.1: http://www.vmware.com/files/pdf/perf-vsphere-memory_management.pdf |
Memory compression |
Before a virtual machine resorts to host swapping, due to memory over commitment the pages elected to be swapped attempt to be compressed. If the pages can be compressed and stored in a compression cache, located in main memory, the next access to the page causes a page decompression as opposed to a disk swap out operation, which can be an order of magnitude faster. |
See Understanding Memory Resource Management in VMware ESXi 5.1: http://www.vmware.com/files/pdf/perf-vsphere-memory_management.pdf |
Large memory page support |
An application that can benefit from large pages on native systems, such as MS SQL, can potentially achieve a similar performance improvement on a virtual machine backed with large memory pages. Enabling large pages increases the memory page size from 4KB to 2MB. |
See Performance Best Practices for VMware vSphere 5.1:http://www.vmware.com/pdf/Perf_Best_Practices_vSphere5.1.pdf and see Performance and Scalability of Microsoft SQL Server on VMware vSphere 4: http://www.vmware.com/files/pdf/perf_vsphere_sql_scalability.pdf |
vsphere性能的更多相关文章
- Vmware Vsphere WebService之vijava 开发(二)一性能信息的采集(实时监控)
最近一直没有更新这部分的内容,会利用五一时间完成vcenter这一个系列. 这里先给大家一本关于vijava开发的书,比较实用. 地址:http://pan.baidu.com/s/1gfkl9mj. ...
- vsphere 5.1 性能最佳实践。
1.关于CPU负载.extop显示的结果 如果CPU load average>=1,说明主机过载了. 如果PCPU used%在80%左右说明良好,90%以上就临近过载了. VM赋予过多的vC ...
- CentOS 6.5 安全加固及性能优化 (转)
通过修改CentOS 6.5 的系统默认设置,对系统进行安全加固,进行系统的性能优化. 环境: 系统硬件:vmware vsphere (CPU:2*4核,内存2G) 系统版本:Centos-6.5- ...
- VMware vSphere 5.1 简介与安装
虚拟化系列-VMware vSphere 5.1 简介与安装 标签: 虚拟化 esxi5.1 VMware vSphere 5.1 原创作品,允许转载,转载时请务必以超链接形式标明文章 原始出处 . ...
- Installing vSphere SDK for Perl
Installing vSphere SDK for Perl 你可以安装vSphere SDK 在Linux 或者Microsoft Windows 系统,或者 部署 VSphere Managem ...
- VMware vSphere 5.5的12个更新亮点(1)
[IT专家网虚拟化]在VMworld 2013大会上发布的VMware vSphere 5.5版本提供的增强和改进,横跨从hypervisor到管理整个堆栈,提升了VMware的性能.可伸缩性和可用性 ...
- VMware vSphere 服务器虚拟化之二十二桌面虚拟化之创建View Composer链接克隆的虚拟桌面池
VMware vSphere 服务器虚拟化之二十二桌面虚拟化之创建View Composer链接克隆的虚拟桌面池 在上一节我们创建了完整克隆的自动专有桌面池,在创建过程比较缓慢,这次我们将学习创建Vi ...
- VMware vSphere 服务器虚拟化之二十八 桌面虚拟化之安装View传输服务器
VMware vSphere 服务器虚拟化之二十八 桌面虚拟化之安装View传输服务器 View 传输服务器用于管理和简化数据中心与在最终用户本地系统上检出使用的 View 桌面之间的数据传输.必须安 ...
- VMware vSphere 服务器虚拟化之二十六 桌面虚拟化之View Persona Management
VMware vSphere 服务器虚拟化之二十六 桌面虚拟化之View Persona Management 实验失败告终,启动VMware View Persona Management服务报10 ...
随机推荐
- 5日均线MACD
1.5日均线: 5日均线是股市术语,就是股票5天的成交价格或指数的平均值,所对应的是股价的5日均线和指数的5日均线(5MA).均线指标实际上是移动平均线指标的简称. 一般在K 线图中会有3 条或4 条 ...
- Java Deadlock Example and How to analyze deadlock situation
source:http://www.journaldev.com/1058/java-deadlock-example-and-how-to-analyze-deadlock-situation De ...
- C#编程(四十三)----------Lambda表达式
Lambda表达式 案例: using System; using System.Collections.Generic; using System.Linq; using System.Text; ...
- WebLogic清理缓存
如果发布到weblogic的工程,登录发现还是原来的代码错误,可尝试清理weblogic缓存: 1.在weblogic控制台中停止应用,删除部署的工程 2.登录weblogic服务器,删除以下目录中的 ...
- c++ 实现atoi()函数
1. 问题描写叙述 实现c++函数库中atoi()函数,要考虑到各种特殊情况: 空字符串. +和-号. 字符串前中后n个空格. 溢出. 非数字字符. 2. 解决方式 转换过程并不复杂.复杂的是要考虑到 ...
- Codeforces 394D Physical Education and Buns 胡搞
题目链接:点击打开链接 题意:给定n个数的序列(能够排序) 操作一次能够使得某个数++或--. 问最少操作几次使得序列变成一个等差序列 输出: 第一行输出最少操作的次数 第二行输出等差数列里的最小项 ...
- Linux学习16-CentOS安装gitlab环境
前言 在学习Gitlab的环境搭建之前,首先需要了解Git,Gitlab,GitHub他们三者之间的关系 Git 它是一个源代码版本控制系统,可让您在本地跟踪更改并从远程资源推送或提取更改. GitH ...
- JForum 源码分析
怎么才算好的源码分析呢?当然我这个肯定不算.我想大概分为几个层面吧,写写注释那算最基本的了,写写要点思路和难点,算是还不错拉,再难的就是跳出源码举一反三,形成自己的一套思路吧.好好努力吧. 这次针对的 ...
- java算法实现树型目录反向生成(在指定的盘符或位置生成相应的文件结构)
http://www.cnblogs.com/interdrp/p/6702482.html 由于此次文件管理系统的升级确实给我们带来了很多方便且在性能上有很大提升,经过这段时间的使用 也发现了些问题 ...
- mac下设置eclipse自动提示
偏好设置 -> General -> Editors -> File Associations .xml -> 设置XML Editor为default Keys 中查找 ...