Release: Xen Hypervisor version 4.2.0

Posted by virtualization.info Staff   |   Monday, September 17th, 2012   |  
Xen, just announced the release of Xen Hypervisor version 4.2.0
The first version of the product was developed by The University of Cambridge Computer Laboratory and it has been maintained as free software, licensed under the GNU General Public License (GPL). Xen is currently available for the IA-32, x86-64 and ARM computer architectures. It is used by many public cloud and hosting services.
Xen 4.2.0 is the result of 18 months of work on 300K lines of code of development effort, by 124 individuals from 43 organizations.
Among the new Features:
XL is now the default toolstack: Significant effort has gone in to the XL tool toolstack in this release and it is now feature complete and robust enough that we have made it the default. This toolstack can now replace xend in the majority of deployments, see XL vs Xend Feature Comparison. As well as improving XL the underlying libxl library has been significantly improved and supports the majority of the most common toolstack features. In addition the API has been declared stable which should make it even easier for external toolstack such as libvirt and XCP’s xapi to make full use of this functionality in the future.
Large Systems: Following on from the improvements made in 4.1 Xen now supports even larger systems, with up to 4095 host CPUs and up to 512 guest CPUs. In addition toolstack feature like the ability to automatically create a CPUPOOL per NUMA node and more intelligent placement of guest VCPUs on NUMA nodes have further improved the Xen experience on large systems. Other new features, such as multiple PCI segment support have also made a positive impact on such systems.
Improved security: The XSM/Flask subsystem has seen several enhancements, including improved support for disaggregated systems and a rewritten example policy which is clearer and simpler to modify to suit local requirements.
Documentation: The Xen documentation has been much improved, both the wiki. This is in no small part down to the success of the Xen Document Days so thanks to all who have taken part.


blog comments powered by Disqus


virtualization.info Newest articles
Release: VMware Workstation 12 Pro, Player 12, Fusion 8 and Fusion Pro 8

August 25th, 2015

VMware today released version 12 of its type-2 client hypervisor products for Microsoft Windows: Workstation Pro and Player and version 8 of its client hypervisor products for Mac OSX: Fusion….

Release: Veeam Management Pack v8 for System Center

August 25th, 2015

Veeam today released version 8.0 of its Management Pack for Microsoft System Center Operations Manager (SCOM or OpsMgr). Using this Management Pack customers running Operations Manager to monitor vSphere and…

Release: Oracle VM VirtualBox 5.0

August 24th, 2015

Oracle has released version 5.0 of its type-2 virtualization platform VM VirtualBox. Starting with a public beta in April this year and some more test builds and a release candidate…

Microsoft releases 3rd technical preview of Windows Server 2016 and System Center 2016

August 19th, 2015

Microsoft today announced the release of the 3rd technical preview of the next version of its Server Operating System (Windows Server 2016 TP3) and corresponding management software (System Center…

From VirtualizationMatrix comes WhatMatrix – UPDATED

August 19th, 2015

We quoted several times Virtualization Matrix, the website created to compare the capabilities of the various virtualization platforms on the market such VMware, Microsoft and Citrix.
This idea sparked…

Release: Linux Integration Services Version 4.0 for Hyper-V

August 18th, 2015

Microsoft has released version 4.0. of its Integration Services for Linux. Hyper-V supports both emulated (“legacy”) and Hyper-V-specific (“synthetic”) devices for Linux virtual machines. When a Linux virtual machine…

Release: Microsoft Desktop Optimization Pack 2015

August 18th, 2015

Microsoft has released version 2015 of its Desktop Optimization Pack (MDOP), which is available as a paid add-on for Microsoft Customers with Software Assurance. In the 2015 release, the…

Release: Microsoft Deployment Toolkit 2013 Update 1

August 18th, 2015

Microsoft has released version 2013 Update 1 of its Deployment Toolkit. The Microsoft Deployment Toolkit (MDT) is a toolset for automating desktop and server operating system deployments. MDT 2013…

Release: Parallels Access 3.0 with Apple Watch Support Capabilities

August 6th, 2015

On August 5, Parallels announced that it has released an update to Parallels Access app for remote access. The American virtualization technology company has added file sharing support to its…

Citrix CEO Mark Templeton plans to retire

July 30th, 2015

On July 28 Citrix disclosed that Mark Templeton, the company CEO, has plans to retire after over 20 years of service, an unexpected news that drew attention on the next…

Citrix announces Q2 2015 results

July 30th, 2015

Citrix announced its financial results for second quarter 2015.
The revenues for the second quarter were $797 million for an increase of 2% compared to Q2 2014.
Net income was $103…

VMware announces results for Q2 2015

July 24th, 2015

VMware released the results about its results for Q2 2015.
VMware, announced a GAAP total revenue growth of $1.52 billion, for an increase of 4 percent compared to Q2 2014. License revenues…

Gartner releases its 2015 Magic Quadrant for x86 Server Virtualization Infrastructure

July 21st, 2015

Gartner released its Magic Quadrant for x86 Server Virtualization Infrastructure for year 2015, once more positioning VMware and Microsoft in the leaders Quadrant.
No surprises in the leaders quadrant, as…

Release: Parallels Mac Management 4.0 for Microsoft SCCM

July 21st, 2015

Parallels announced the availability of Parallels Mac Management 4.0 for Microsoft System Center Configuration Manager (SCCM), extending its range of capabilities to Mac computers.
This new release increases the flexibility…

 
Monthly Archive