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

Gallium3D's LLVMpipe Software Rasterizer Is Kicking

Mesa

Published on 11 March 2010 11:57 AM EST
Written by Michael Larabel in Mesa
25 Comments

While we are still waiting for the hardware drivers to mature for Gallium3D (particularly the Nouveau stack for all NVIDIA GPUs, the Intel 965 driver, the ATI R300g driver to mature, and then the R600g driver to come about), VMware has been working on their a software rasterizer as well through a Gallium3D state tracker. This new software rasterizer looks like it's finally coming about and is already delivering great performance compared to Mesa's existing software rasterizer that is rather crippled.

José Fonseca has been leading the work on llvmpipe, which uses LLVM (the Low-Level Virtual Machine) to generate and optimize code (shaders) for Gallium3D. LLVMpipe offers a software rasterizer. This rasterizer is threaded and tiled, which allows it to scale well on modern hardware and much better than what is currently used within Mesa. The entire fragment pipeline is already code-generated, but Zack Rusin has been working on implementing the vertex pipeline within llvmpipe. Zack's also been working on other missing pieces too.

There's still a lot of work left to do on LLVMpipe and its software rasterizer as well as Gallium3D in general, but its already running modestly well considering its state. Zack has been able to run OpenArena on an Intel Xeon E5405 (it's a 2.0GHz quad-core) processor at 25 FPS, which is just about playable, but there are some artifacts that need to be addressed. This is in comparison to the software renderer in Mesa that runs at 3.5 FPS on the same hardware.

Read more on Zack Rusin's blog.

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. The MSI X99S SLI PLUS Is Working & Running Well On Linux
  2. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  3. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  4. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
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. Radeon DRM Gets New Information Ioctl Queries
  2. Mir 0.8 Works On Less ABI Breakage, Touchspots, Responsiveness
  3. CS:GO For Linux Gains Better Stability, Community Server Support
  4. NVIDIA Issues Updated 340.46 Long-Lived Driver Release
  5. KDE Plasma 5.1 Now In Beta
  6. Systemd & Debian Were Most Popular In September
  7. Microsoft Announces... Windows 10 With A Start Menu
  8. Borderlands 2 Launches On Steam For Linux
  9. Debian Jessie Might Get Rid Of The kFreeBSD Port
  10. Fedora Might Try A New Scheduling Strategy For Its Releases
Latest Forum Discussions
  1. Microsoft Announces... Windows 10 With A Start Menu
  2. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Nero CD/DVD Burning Software On Linux Is Dead
  5. New Group Calls For Boycotting Systemd
  6. FSF Issues Statement On Shellshock Bash Vulnerability
  7. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  8. X.Org Is Looking For Some Female Help