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

Intel Pushes XenGT For GPU Access To Virtual Machines

Virtualization

Published on 27 March 2014 02:27 AM EDT
Written by Michael Larabel in Virtualization
8 Comments

Last month on Phoronix I wrote about Intel's new XenGT project as a means of mediated GPU pass-through to Xen-based guests. Today at the Linux Foundation Collaboration Summit is an update by an Intel engineer on the XenGT technology.

XenGT is a full GPU virtualization solution with mediated pass-through and on the VM side runs the system's native graphics driver for the targeted hardware. When it comes to Intel hardware, Haswell's Iris Graphics is their main focus along with next-generation Broadwell processors.

XenGT is designed just not for 3D graphics acceleration within guest instances but also for media acceleration and GPGPU compute acceleration. There's use-cases for XenGT within cloud computing, data centers, rich virtual clients, multi-screen infotainment, and other areas. With other Xen GPU pass-through solutions there is no ability for both the host and guest operating systems to each access the same GPU simultaneously but they must be independently assigned at this time as there isn't a guest virtual GPU driver as in the case of VMware SVGA2 or VirtualBox Chromium. With Intel's XenGT solution, however, there is sharing support -- multiple VMs can access the same graphics processor due to its full virtualization. XenGT is pushed as offering performance, features, and sharing capabilities.

Intel made a new release of XenGT this month that has stability improvements, supports guest resolution changes, enhances support for multiple displays and hot-plugs, and there is initial support for GPU recovery. For many OpenGL workloads, the performance of XenGT is 80%+ the host's solution while for some games it was just 60%+.

Those users of Xen virtualization that want to learn more about Intel's XenGT solution that will be presented in a few hours at the Linux Foundation Collaboration Summit, the slides can be viewed right now in PDF form via this link. I'm in Napa Valley at this annual, invite-only summit so stay tuned for additional coverage later today as the more exciting talks get underway.

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 Hardware Reviews
  1. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  2. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  3. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  4. AMD Radeon R9 285 Tonga Performance On Linux
Latest Linux Articles
  1. Ubuntu 14.10 XMir System Compositor Benchmarks
  2. Btrfs RAID HDD Testing On Ubuntu Linux 14.10
  3. Ubuntu 14.10 Linux 32-bit vs. 64-bit Performance
  4. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
Latest Linux News
  1. What Linux Benchmarks Would You Like To See Next?
  2. Open-Source, Linux Support For Corsair Link Devices Slowly Materializing
  3. Cairo-Dock 3.4 Shows A Lot Of Progress, Works Toward EGL/Wayland Support
  4. Mesa 10.4 Tentatively Planned For Early December
  5. SteamOS Update 145 Brings Compositor, Update Fixes
  6. GStreamer 2014 Conference Videos Posted: Wayland, HTML5, 3D
  7. Nouveau Now Supports DRI3 Without GLAMOR
  8. Features Of The Linux 3.18 Kernel
  9. Debian Now Defaults To Xfce On Non-x86 Desktops
  10. Phoenix Is Trying To Be An Open Version Of Apple's Swift
Latest Forum Discussions
  1. Linux hacker compares Solaris kernel code:
  2. HOPE: The Ease Of Python With The Speed Of C++
  3. Users/Developers Threatening Fork Of Debian GNU/Linux
  4. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  5. AMD Releases UVD Video Decode Support For R600 GPUs
  6. Proof that strlcpy is un-needed
  7. xbox one tv tuner
  8. Bye bye BSD, Hello Linux: A Sys Admin's Story