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

Radeon X1000 GPUs (R500) On Linux Finally Get HyperZ

Intel

Published on 03 December 2012 01:15 PM EST
Written by Michael Larabel in Intel
6 Comments

Shortly after improving the HyperZ support in R300g, Marek Olšák has now enabled HyperZ support by default for ATI R500 (Radeon X1000 series) GPUs.

The R300/R400 GPUs don't yet have HyperZ support enabled by default until sufficient testing has been completed, but the HyperZ support can be toggled via the RADEON_HYPERZ environment variable. The newer Radeon GPUs with the R600g Gallium3D driver also don't yet have usable HyperZ support enabled by default. HyperZ is the ATI/AMD technology that's been around going back to the R100 GPU days for boosting the GPU performance and efficiency. HyperZ consists of Z compression for minimizing the Z-Buffer bandwidth, fast Z clear, and a hierarchical Z-Buffer.

In the Git commit enabling this feature, Marek describes the support as:
- Only one process can use it at a time. This is a hardware limitation.
- The first process to clear a zbuffer gets the exclusive access to use Hyper-Z.
- Compositors don't use any zbuffer, so they won't steal it, but some web browsers do, so make sure there's no web browser running if you want your game to use Hyper-Z.
- There's no need to restart an app which couldn't get the access to Hyper-Z. Just quit the app which took it, the driver can turn it on for the other app in the middle of rendering.
- If an app gets the access to Hyper-Z, it prints "radeon: Acquired Hyper-Z" to stdout.
I did some HyperZ benchmarks months ago, but new R300g performance tests will now be coming up.

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. MSI X99S SLI PLUS On Linux
  2. NVIDIA GeForce GTX 970 Offers Great Linux Performance
  3. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  4. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
Latest Linux Articles
  1. Open-Source Radeon 2D Performance Is Better With Ubuntu 14.10
  2. RunAbove: A POWER8 Compute Cloud With Offerings Up To 176 Threads
  3. 6-Way Ubuntu 14.10 Linux Desktop Benchmarks
  4. Ubuntu 14.10 XMir System Compositor Benchmarks
Latest Linux News
  1. Dead Island GOTY Now Available On Linux/SteamOS
  2. Ubuntu 14.04 In The Power8 Cloud From RunAbove
  3. KDE With Theoretical Client-Side Decorations, Windows 10 Influence
  4. Sandusky Lee: Great Cabinets For Storing All Your Computer Gear
  5. Fedora 21 Beta & Final Release Slip Further
  6. Mesa 10.3.2 Has A Couple Bug-Fixes
  7. RadeonSI/R600g HyperZ Support Gets Turned Back On
  8. openSUSE Factory & Tumbleweed Are Merging
  9. More Fedora Delays: Fedora 21 Beta Slips
  10. Mono Brings C# To The Unreal Engine 4
Latest Forum Discussions
  1. Users/Developers Threatening Fork Of Debian GNU/Linux
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. HOPE: The Ease Of Python With The Speed Of C++
  4. Use Ubuntu MATE 14.10 Make it an official distro.
  5. Debian Is Back To Discussing Init Systems, Freedom of Choice
  6. AMD Radeon VDPAU Video Performance With Gallium3D
  7. Ubuntu 16.04 Might Be The Distribution's Last 32-Bit Release
  8. Linux hacker compares Solaris kernel code: