Generational performance improvement from old study to new study

SQL Server VM Performance on VMware vSphere 6

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Last October, I blogged about SQL Server performance with vSphere 5.5 using a four-socket Intel Xeon processor E7 based host.  Now that vSphere 6 is available, I’ve run an updated set of tests using this new release, on an even more powerful host, with Xeon E7 v2 processors.  A variety of virtual CPU (vCPU) and Read more...

Introducing the Weathervane Benchmark

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The ways in which we use, design, deploy, and evaluate the performance of large-scale web applications have changed significantly in recent years.  These changes have been driven by the increase in computing capacity and flexibility provided by virtualized and cloud-based computing infrastructures. The majority of these changes are not reflected in current web-application benchmarks. Weathervane is Read more...

Virtual SAN 6.0 Performance: Scalability and Best Practices

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A technical white paper about Virtual SAN performance has been published. This paper provides guidelines on how to get the best performance for applications deployed on a Virtual SAN cluster. We used Iometer to generate several workloads that simulate various I/O encountered in Virtual SAN production environments. These are shown in the following table. Type Read more...

Improvements in Network I/O Control for vSphere 6

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Network I/O Control (NetIOC) in VMware vSphere 6 has been enhanced to support a number of exciting new features such as bandwidth reservations. A new paper published by the Performance Engineering team shows the performance of these new features. The paper also explores the performance impact of the new NetIOC algorithm. Later tests show that NetIOC offers Read more...

Failover Time for vCenter Server 6.0 Protected by vSphere HA

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By Jianli Shen, Kimberly Wang, and Lei Chai There are many advantages to virtualizing vCenter Server over installing it on physical devices; these have been blogged about already. VMware best practice also recommends the deployment of vCenter Server as a virtual machine and to use vSphere High Availability (HA) to provide this functionality. The typical scenario Read more...