Latest Posts

DRS Entitlement Viewer

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Ever wondered how DRS distributes resources to VMs? How much resources your VMs are entitled to? How reservations, limits, and shares (RLS) affect your VMs’ resource availability? Our new fling, DRS Entitlement Viewer, is the answer. DRS Entitlement Viewer is installed as a plugin to the vSphere Client. It is currently only supported for the HTML5-based Read more...

vCenter performance improvements from vSphere 6.5 to 6.7: What does 2x mean?

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In a recent blog, the VMware vSphere team shared the following performance improvements in vSphere 6.7 vs. 6.5: Moreover, with vSphere 6.7 vCSA delivers phenomenal performance improvements (all metrics compared at cluster scale limits, versus vSphere 6.5): 2X faster performance in vCenter operations per second 3X reduction in memory usage 3X faster DRS-related operations (e.g. Read more...

Addressing Meltdown/Spectre in VMmark

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The recently described Meltdown/Spectre vulnerabilities have implications throughout the tech industry, and the VMmark virtualization benchmark is no exception. In deciding how to approach the issue, the VMmark team’s goal was to address the impact of the these vulnerabilities while maintaining the value and integrity of the benchmark. Applying the full set of currently available Read more...

SQL Server Performance of VMware Cloud on AWS

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In the past, I’ve always benchmarked performance of SQL Server VMs on vSphere with “on-premises” infrastructure.  Given the skyrocketing interest in the cloud, I was very excited to get my hands on VMware Cloud on AWS – just in time for Amazon’s AWS Summit! A key question our customers have is: how well do applications Read more...

ESX IP Storage Troubleshooting Best Practice White Paper

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We have published an ESX IP Storage Troubleshooting Best Practice white paper in which we recommend vSphere customers deploying ESX IP storage over 10G networks to include 10G packet capture systems as a best practice to ensure network visibility. The white paper explores the challenges and alternatives for packet capture in a vSphere environment with Read more...

Performance Comparison of Containerized Machine Learning Applications Running Natively with Nvidia vGPUs vs. in a VM – Episode 4

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This article is by Hari Sivaraman, Uday Kurkure, and Lan Vu from the Performance Engineering team at VMware. Performance Comparison of Containerized Machine Learning Applications Docker containers [6] are rapidly becoming a popular environment in which to run different applications, including those in machine learning [1, 2, 3]. NVIDIA supports Docker containers with their own Docker engine Read more...

Performance of SQL Server 2017 for Linux VMs on vSphere 6.5

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Microsoft SQL Server has long been one of the most popular applications for running on vSphere virtual machines.  Last year there was quite a bit of excitement when Microsoft announced they were bringing SQL Server to Linux.  Over the last year Microsoft has had quite a bit of interest in SQL Server for Linux and it was Read more...

Episode 3: Performance Comparison of Native GPU to Virtualized GPU and Scalability of Virtualized GPUs for Machine Learning

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In our third episode of machine learning performance with vSphere 6.x, we look at the virtual GPU vs. the physical GPU. In addition, we extend the performance results of machine learning workloads using VMware DirectPath I/O (passthrough) vs. NVIDIA GRID vGPU that have been partially addressed in previous episodes: Episode 1: Performance Results of Machine Read more...
Generational SQL Server VM Database Performance

Updated – SQL Server VM Performance with vSphere 6.5, October 2017

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Back in March, I published a performance study of SQL Server performance with vSphere 6.5 across multiple processor generations.  Since then, Intel has released a brand-new processor architecture: the Xeon Scalable platform, formerly known as Skylake. Our team was fortunate enough to get early access to a server with these new processors inside – just Read more...