Recent Posts

Memory Performance Counters – An Evolved Look at Memory Management

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vSphere memory management has evolved over the years taking advantage of new technologies and techniques like using large memory pages, compressing memory, and using solid state devices (SSDs) for swap caching. This evolution has changed the way we need to look at memory usage and memory over-commitment in vSphere virtualized environments. To understand memory management Read more...

The Best Keep Getting Better – VMware vSphere 5.1 Performance

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Today, VMware’s CTO Steve Herrod, addressed the 20,000+ attendees at VMworld and announced that VMware has out done itself again by providing a virtualization platform more than capable of supporting even the most demanding and I/O intensive mission critical applications. One impressive performance study that Steve highlighted in his keynote was the 1 Million IOPS Read more...

Performance Sessions @ VMworld 2012 San Francisco

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VMworld is just around the corner!  Like always it is going to be an exciting action-packed week.  If you are going to be at the show make sure you check out some of the VMware performance sessions being delivered. vSphere Performance New Features Overview  (you never know there might be some new things 😉 ) Read more...

VMX Swap feature in vSphere 5.0

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Something you might have missed…. A little known feature of vSphere 5.0 called VMX swap helps to reduce the memory footprint of the VMX process by up to 80%. The vSphere kernel has several internal processes, agents, and data structures that require physical memory. vSphere reserves physical memory on the host to assure that these Read more...

Troubleshooting Storage Performance in vSphere (Part 3) – SSD Performance

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While presenting the storage performance talks, I frequently get asked about Solid State Device (SSD) performance in a virtualized environment. Well obviously, SSD’s or EFD’s (Enterprise Flash Disks) are great for performance especially if you have storage intensive workloads. As seen in the previous post in this series, SSDs can provide significantly more IOPs and significantly Read more...

Troubleshooting Storage Performance in vSphere – Part 2

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Poor storage performance is generally the result of high I/O latency, but what can cause high storage performance and how to address it?   There are a lot of things that can cause poor storage performance… – Under sized storage arrays/devices unable to provide the needed performance – I/O Stack Queue congestion – I/O Bandwidth saturation, Read more...

Tighter Integration between EMC VNX Storage and VMware vCenter Operations Management Suite Announced Today

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Posted byJoseph DieckhansSr. Technical Marketing Manager This week I’m out at EMC World 2012,  and wanted to let you know of an exciting new announcement that EMC has made.  EMC announced this week that they will provide Advanced Storage Analytics for their VNX storage arrays using VMware’s vCenter Operations product. The tighter integration between storage Read more...