Single vSphere Host, a Million I/O Operations per Second

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One of the essential requirements for a platform supporting enterprise datacenters is the capability to support the extreme I/O demands of applications running in those datacenters. A previous study has shown that vSphere can easily handle demands for high I/O operations per second. Experiments discussed in a recently published paper strengthen this assertion further by Read more...

Performance Implications of Storage I/O Control-Enabled NFS Datastores

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Storage I/O Control (SIOC) allows administrators to control the amount of access virtual machines have to the I/O queues on a shared datastore. With this feature, administrators can ensure that a virtual machine running a business-critical application has a higher priority to access the I/O queue than that of other virtual machines sharing the same Read more...

Multicast Performance on vSphere 5.0

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Multicast is an efficient way of disseminating information and communicating over the network. A single sender can connect to multiple receivers and exchange information while conserving network bandwidth. Financial stock exchanges, multimedia content delivery networks, and commercial enterprises often use multicast as a communication mechanism. VMware virtualization takes multicast efficiency to the next level by Read more...

PCoIP Improvements in VMware View 5.0

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PCoIP is VMware View’s VDI display protocol and one of its key repsonsibilities is capturing the remote desktop’s AV output and conveying it to the user’s client deivce.   With VMware View 5.0 we introduce a variety of important optimizations to the PCoIP protocol that deliver a significant reduction in PCoIP’s resource utilization, benefiting users in Read more...

VMware View & PCoIP at VMworld

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In recent weeks there’s been growing excitement about the PCoIP enhancements coming to VMware View. For instance, Warren Ponder discussed here how these enhancements reduce bandwidth consumption by up to 75%. Engineers from VMware’s performance team (& Warren) will be talking more about these enhancements and how they translate into real-world performance at the rapidly Read more...