A Speedier Open-source Xen Hypervisor

By ServerWatch Staff (Send Email)
Posted Apr 15, 2010


According to Xen.org, a number of new tweaks in the recently announced update to he widely used open-source Xen hypervisor make it suitable for network-intensive and high-performance computing applications. As mentioned in this ZDNet report, performance improvements in Xen 4.0 include new algorithms, such as Transcendent Memory and Page Sharing, designed to improve the performance of memory operations.


An update to the Xen hypervisor offers improvements to performance, memory usage and security.

"In addition, the hypervisor includes a new virtual hard disk (VHD) implementation for delivering high-performance virtual-machine snapshots and cloning features.

"On the hardware side, the hypervisor supports reliability, availability and serviceability (RAS) features found in new Intel Xeon and AMD Opteron processors. Besides this, it is tailored to newer developments in networking hardware, such as network interface cards with multi-queue and Single Root I/O Virtualisation (SR-IOV) features.

"The Xen update also introduces support for PVOps in the Domain0 Linux kernel, an option that lets administrators access the most recent devices supported by the kernel."

Read the Full Story at ZDNet

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