Surveying Virtualization Performance Trends with VMmark

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The trends in published VMmark scores are an ideal illustration of the historical long-term performance gains for virtualized platforms. We began work on what would become VMmark 1.0 almost five years ago. At the time, ESX 2.5 was the state-of-the-art hypervisor. Today’s standard features such as DRS, DPM, and Storage VMotion were in various prototype and development stages. Read more...

Comparing Fault Tolerance Performance & Overhead Utilizing VMmark v1.1.1

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VMware Fault Tolerance (FT), based on vLockstep technology and available with VMware vSphere, easily and efficiently provides zero downtime and zero data loss for your critical workloads. FT provides continuous availability in the event of server failures by creating a live shadow instance of the primary virtual machine on a secondary system.  The shadow VM Read more...

Measuring the Cost of SMP with Mixed Workloads

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It is no secret that vSphere 4.0 delivers excellent performance and provides the capability to virtualize the beefiest of workloads. Several impressive performance studies using ESX 4.0 have been already been presented. (My favorite is this database performance whitepaper.) However, I continue to hear questions about the scheduling overhead of larger VMs within a heavily-utilized, mixed-workload Read more...

VMmark 1.1.1 Released

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VMmark 1.1.1 was released earlier this week to address a few minor bugs in VMmark 1.1. In addition, we have been working closely with the members of the VMmark review panel and other partners to improve the data gathering necessary for a benchmark review. To that end, we have automated several data gathering tasks and Read more...

VMmark Review Panel Convenes

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Those of you who follow VMmark know that there are currently more than forty benchmark results from our partners posted on the VMmark Results Page . All of these results have been carefully reviewed by VMware to ensure compliance with the benchmark run and reporting rules. It has been very gratifying to see VMmark embraced and used Read more...

YouTube Star: VMmark Cluster Demonstrates DPM

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We recently posted the results of some experiments running VMmark across a 4-server cluster using DRS (here and here) that demonstrate the power and flexibility of VMware Infrastructure. We have used the same methodology and the same hardware to measure the performance impact of DPM (there wasn’t any) as well as the power savings (it Read more...

Sun Shows Value of Large Pages in VMmark

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I am fascinated studying the ripple effects seen in overall system performance caused by tuning a subset of workloads in a virtualized environment. Our partners at Sun have provided a textbook case by publishing two VMmark 1.1 results on the Sun Fire X4240 last month. The scores were 7.92 @ 6 tiles and 8.07 @ Read more...

Unisys Publishes VMmark Result

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Our partners at Unisys recently published their debut VMmark result of 21.96 @ 15 tiles using an ES7000 Model 7405R G1. This is a 32-core, 8-socket system. You can find the details at the ever-growing VMmark results page. Read more...

Measuring Cluster Reconfiguration with VMmark

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In my previous blog entry about running VMmark within a four-server cluster managed by VMware Infrastructure 3 version 3.5 (VI3.5), the results showed that a cluster of four servers exceeded the available CPU resources when running 17 VMmark tiles (102 total virtual servers). The scaling then plateaus due to CPU saturation. I suppose that if Read more...