1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking Benchmarking Platform
Phoromatic Test Orchestration

Xen 4.1 Hypervisor Now Available

Virtualization

Published on 25 March 2011 05:23 PM EDT
Written by Michael Larabel in Virtualization
1 Comment

For those of you that prefer Xen virtualization under Linux rather than KVM/QEMU, VirtualBox, VMware, or any of the other virtualization solutions available, the Xen 4.1 Hypervisor has just been released with some major changes.

Xen 4.0.0 was released nearly one year ago (9 April 2010), but Xen 4.1.0 is now here to outdo that release.

Key features mentioned in the Xen 4.1 release notes include:

- A re-architected XL toolstack that is functionally nearly equivalent to XM/XEND
- Prototype credit2 scheduler designed for latency-sensitive workloads and very large systems
- CPU Pools for advanced partitioning
- Support for large systems (>255 processors and 1GB/2MB super page support)
- Support for x86 Advanced Vector eXtension (AVX)
- New Memory Access API enabling integration of 3rd party security solutions into Xen virtualized environments
- Even better stability through our new automated regression tests

The AVX support is welcome for those that are upgrading to Intel Sandy Bridge CPUs or AMD Bulldozers once released.

With Xen 4.1, the Xen dom0 and guest support is also available in most upstream Linux distributions to work unmodified. The dom0 support is with the vanilla Linux 2.6.38 kernel and then the rewritten Xen PV-on-HVM drivers were tacked on one release earlier, the Linux 2.6.37 kernel. There's also now upstream QEMU support for Xen.

It looks like a great release overall and may warrant some new Linux virtualization benchmarks. Xen 4.1 can be downloaded at Xen.org.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux News
  1. HiSense Chromebook Benchmarks When Running Ubuntu Linux
  2. Mandriva Linux Was Allegedly Brought Down By Employee Lawsuits
  3. GNOME 3.17.2 Is Released As The Latest Look Towards GNOME 3.18
  4. Phoronix Turns 11 Years Old Next Week: How Should We Celebrate?
  5. Ubuntu Community Council Reaffirms Its Decision Against Kubuntu's Leader
  6. Future Plans For Changing Fedora's Installer
  7. Confusion Mounts Over Wayland's Actual License
  8. GNOME's Mutter Now Supports Drag-n-Drop To/From Wayland & X11
  9. Wine 1.7.44 Works On More 64-bit ARM Support
  10. Phoronix Test Suite 5.8 Milestone 5 Brings Near Final "Belev" Experience
Latest Articles & Reviews
  1. Btrfs RAID 0/1/5/6/10 Five-Disk Benchmarks On Linux 4.1
  2. Opening The Gates To Our Daily Open-Source Linux Benchmark Results
  3. The Latest Features For Linux Performance Management + Benchmark Monitoring
  4. Noctua NH-U12DX i4 + NF-F12
Most Viewed News This Week
  1. NVIDIA's Proprietary Driver Is Moving Closer With Kernel Mode-Setting
  2. Features Added To Mesa 10.6 For Open-Source GPU Drivers
  3. Ubuntu's LXD vs. KVM For The Linux Cloud
  4. Friction Building Around An Ubuntu Community Council Decision
  5. The Latest Linux Kernel Git Code Fixes The EXT4 RAID0 Corruption Problem
  6. The CompuLab Fitlet Is A Neat Little Linux PC With AMD SoC
  7. Linux 4.1-rc5 Kernel Released
  8. Russia's Baikal Chips End Up Going For A MIPS CPU