Technical White Paper - What’s New in VMware vSphere 5.1 – Performance

VMware vSphere 5.1 continues to enhance the performance features and capabilities of the vSphere platform, making it the most robust and highest-performing cloud platform. vSphere 5.1 supports even larger virtual machines and physical hosts to accommodate even the most demanding of workloads. It also introduces several new features that reduce latency and increase throughput for network, storage and compute.

The following are some of the performance highlights in vSphere 5.1:

• VMware vSphere Web Client

• VMware vCenter™ Single Sign-On server scalability

• vCenter Server database and statistics collection enhancements

• 64-way vCPU scalability

• 256 pCPU support

• New physical processor enablement

• Memory overhead reduction

• Virtualized CPU performance counters

• Latency setting

• VMware vSphere Storage I/O Control enhancements

• VMware vSphere Storage DRS enhancements

• 16GB Fibre Channel support

• Hardware iSCSI jumbo frames support

• Single-root I/O virtualization (SR-IOV)

• VMware vSphere Distributed Switch (VDS) scalability improvements

• vMotion enhancements

• VMware vSphere Storage vMotion enhancements

• 3D graphics

• VMware vSphere APIs – Array Integration (VAAI) snapshots
• VXLAN

http://www.vmware.com/files/pdf/techpaper/Whats-New-VMware-vSphere-51-Performance-Technical-Whitepaper.pdf