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 Articles & Reviews
  1. Ubuntu vs. Fedora Linux On Lenovo's X1 Carbon With Core i7 Broadwell
  2. Ubuntu 15.04 Is The Easy Path To Better Performance On Intel Broadwell
  3. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  4. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  5. AMD FX-8320E Performance On Linux
  6. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
Latest Linux News
  1. Free Software Foundation Endorses Another (Outdated) Laptop
  2. DNF Plugins Extend The Functionality Of Fedora's Yum Successor
  3. LibreOffice 4.4 Released With Better OOXML Support, UI Improvements
  4. Inkscape 0.91 Goes Through C++ Code Conversion, New Cairo Rendering, OpenMP Filters
  5. New Mesa Patch To Improve CPU-Bound Applications
  6. LLVM Adds Options To Do Fuzz Testing
  7. Coreboot Now Supports Another Dual-Socket AMD Motherboard
  8. Atomic Mode-Setting/Display Support Progresses In Linux 3.20
  9. NVIDIA 340.76 Brings Three Stable Fixes
  10. Intel Broadwell-U P-State vs. ACPI CPUFreq Scaling Linux Performance
Most Viewed News This Week
  1. PlayStation 4 System Compiler Support Landing In LLVM
  2. LibreOffice 4.4 Is Coming Soon With New Features
  3. Linux "GHOST" Vulnerability Hits Glibc Systems
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  6. LZHAM 1.0 Lossless Data Compression Codec Released
  7. Linux Users Upset By Chromium's Busted HiDPI Support
  8. Interstellar Marines On Linux With Catalyst: Bull S*#@