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. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  2. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
  3. Scythe Mugen MAX
  4. Intel Core i7 5960X Haswell-E On Linux
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. Fedora Might Try A New Scheduling Strategy For Its Releases
  2. AMD's Catalyst Working On A GLSL Shader Cache
  3. OpenMP 4.0 Offloading Is Closer For GCC 5
  4. Wayland Presentation Extension Added To Weston
  5. Intel Skylake Support Rolls Out To Mesa's DRM
  6. VA-API's Libva 1.4.0 Brings VP8 Encoding Support
  7. Operating System U Fails To Live Up To Its Goals
  8. AMD Catalyst 14.9 Officially Released For Linux
  9. Nouveau Memory Re-Clocking Comes For More NVIDIA GPUs
  10. NVIDIA Suggests Explicit Synchronization For Nouveau
Latest Forum Discussions
  1. New AMD Catalyst drivers out today
  2. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Take the Steam Survey results with a grain of salt. It is flawed.
  5. FSF Issues Statement On Shellshock Bash Vulnerability
  6. AMD Wants To Know What's Wrong With Catalyst
  7. New Group Calls For Boycotting Systemd
  8. Counter-Strike: Global Offensive NVIDIA/AMD Benchmarks On Linux