After 11 months of development and nearly 1900 amendments, the Xen hypervisor is now available in final version 4.1. Xen is a free software as a reminder of (para) virtualization to run multiple operating systems on one physical machine, each guest OS with access to host resources. Supports configurations with more than 255 processors - organized into "pools" - and memory pages 1 GB / 2 MB, this new version also has a scheduler next generation (credit2) improving performance with low overhead operations latency operations such as audio or network.
Support instructions AVX (Advanced Vector eXtension), available on recent x86 processors from Intel, is also emerging. Xen 4.1 is finally delivered with the toolchain XL, which replaces the old command-line interface XM. For those interested, the Xen hypervisor 4.1 and related tools can be downloaded free here. 
Support instructions AVX (Advanced Vector eXtension), available on recent x86 processors from Intel, is also emerging. Xen 4.1 is finally delivered with the toolchain XL, which replaces the old command-line interface XM. For those interested, the Xen hypervisor 4.1 and related tools can be downloaded free here.
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