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.org

Xen 4.0.0 Released For Improved Virtualization

Virtualization

Published on 09 April 2010 09:37 PM EDT
Written by Michael Larabel in Virtualization
2 Comments

While the Xen virtualization platform has lost much of its spotlight to KVM, the Kernel-based Virtual Machine that has been living in the mainline Linux kernel for a few years now, Xen 4.0.0 has made it into the world this week.

New features for Xen 4.0.0 include performance improvements, better scalability, blktap2 for VHD image / snapshots / cloning support, improved IOMMU PCI pass-through for Intel VT-d and AMD IOMMU systems, VGA primary graphics card pass-through support to an HVM guest for high performance graphics using direct access to the graphics card, memory page sharing and page-to-disc for HVM guests, Netchannel2 for improved networking, online resize of guest disks without reboot/shutdown, para-virtual high-performance USB pass-through to both PV and HVM guests, and many other new features and changes.

Xen 4.0.0 supports up to 128 virtual CPUs per guest, up to 1TB of RAM per host, and 128 physical CPU cores per host for a default compilation. The Xen graphics card pass-through support requires a system with Intel VT-d for IOMMU support (the AMD IOMMU support for this functionality is not currently working well) and has primarily been tested using Intel graphics. Some AMD and NVIDIA graphics cards can be passed to Xen guests too, but require additional Xen patches to work. More on the Xen VGA pass-through support can be found on this Wiki page. There's also a video demonstration of this new Xen 4 feature in this blog post.

On this Wiki page provides the release notes for the Xen 4.0.0 features and changes along with installation instructions.

Latest Linux Hardware Reviews
  1. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
  2. Mini-Box M350: A Simple, Affordable Mini-ITX Case
  3. Overclocking The AMD AM1 Athlon & Sempron APUs
  4. AMD Athlon 5350 / 5150 & Sempron 3850 / 2650
Latest Linux Articles
  1. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  2. AMD OpenCL Performance With AM1 Kabini APUs
  3. A Quick Look At GCC 4.9 vs. LLVM Clang 3.5
  4. Are AMD Athlon/Sempron APUs Fast Enough For Steam On Linux?
Latest Linux News
  1. FreeBSD Advances For ARM, Bhyve, Clang
  2. Ubuntu 14.04 LTS "Trusty Tahr" Officially Released
  3. Ubuntu 12.04 LTS vs. 14.04 LTS Server Benchmarks
  4. QEMU 2.0 Released With ARM, x86 Enhancements
  5. Running The Unity 8 Preview Session On Ubuntu 14.04 LTS
  6. R600 Gallium3D Disables LLVM Back-End By Default
  7. Fedora 21 Gets GNOME 3.12, PHP 5.6, Mono 3.4
  8. Fedora Workstation Is Making Me Quite Excited
  9. Maynard: A Lightweight Wayland Desktop
  10. Chromium Browser Going Through Growing Pains In Ubuntu 14.04
  11. KDE 4.13 Is Being Released Today With New Features
  12. Trying Out Radeon R9 290 Graphics On Open-Source
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  3. The GNOME Foundation Is Running Short On Money
  4. Radeon 8000M problematic on Linux?
  5. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura
  6. Suspected PHP Proxy Issue
  7. Change installation destination from home directory
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story