Recent Posts

World’s First TPC-VMS Benchmark Result

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VMware, along with our partner HP, are excited to announce the world’s first TPC-VMS benchmark result! Many organizations and their operations teams are still not confident that databases can be virtualized successfully.  It has been VMware’s experience though that performance should no longer be a barrier to continued adoption of database workloads on vSphere.  By Read more...

Preview – Extreme Performance Series: Monster Virtual Machines

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This year at VMworld (both San Francisco and Barcelona) performance will be front and center.  I’ve been working internally to create a “mini-track” of technically advanced performance breakouts with many of our actual performance engineers as speakers.  Customers always want to know about best practices, troubleshooting and just how far vSphere can push the performance Read more...

The Performance Cost of SMP – The Reason for Rightsizing

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Rightsizing is an important operational process that does affect performance.  VMware recognizes this and recommends the use of vCenter Operations to assist in identifying under/oversized workloads within your infrastructures.  The value of rightsizing helps to ensure maximum performance of your workloads and the efficient use of your underlying hardware.  It is very easy today to Read more...

Troubleshooting Performance Comparisons (with cheat sheet)

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When someone experiences a performance comparison issue when a workload is moved from physical to virtual (or from another virtual platform/system) this is how I approach diagnosing it or identifying why performance was different. Let me start by saying that using current infrastructure and the latest versions of vSphere, there should be little or no Read more...

vSphere 5.1 – VMDK versus RDM

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It seems the debate between using a VMDK on VMFS or an RDM still rages when it comes to the question which one is better for performance. The VMware team has published a lot of evidence in the past that the difference is very minor, in fact difficult to measure accurately and probably unperceivable to Read more...