Performance Troubleshooting for VMware vSphere 4 and ESX 4.0

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Performance problems can arise in any computing environment. In a virtualized computing environment performance problems can arise due to new and often subtle interactions occurring in the shared infrastructure. Uncovering the causes of those problems requires an understanding of the available performance metrics and their relationship to underlying configuration issues. A new guide covering performance Read more...

Performance Evaluation of VMXNET3 Virtual Network Device

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vSphere 4.0 introduces a new para-virtualized network device – VMXNET3.  We recently published a paper demonstrating its performance characteristics, compared to that of enhanced VMXNET2 (the previous generation of high performance virtual network device from VMware). Some highlights of this paper are: (1) Throughput gains of up to 92% for 10G TCP/IPv4 Rx workloads with Read more...

Understanding Memory Resource Management in VMware ESX Server

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Recently, we have published a whitepaper about how ESX server manages the host memory resource. This paper not only presents the basic memory resource management concepts but also shows experiment results explaining the performance impact of three different memory reclamation techniques: Page sharing, ballooning, and host swapping used in ESX sever. The experiment results show Read more...