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 Benchmarking Platform
Phoromatic Test Orchestration

LLVMpipe Scaling With Intel's Core i7 Gulftown

Michael Larabel

Published on 1 November 2010
Written by Michael Larabel
Page 2 of 4 - 15 Comments

To no surprise considering the Core i7 970 offers up to 12 threads, 12MB of L3 cache, SSE 4.2 support, and other state-of-the-art features, with this Gulftown CPU are the best LLVMpipe numbers we have ever encountered. When utilizing all six cores, the Core i7 970 started out with an average frame-rate above 50 FPS (and at times during the timed demo had topped above 80 FPS) and then gradually dropped from there but even at 1024 x 768 the frame-rate was still above 30 FPS when using five cores or more.

In terms of scaling, when going from one to two cores, the frame-rate doubled at every step of the way except for 1920 x 1080. Simply taking advantage of one core on the Core i7 970 that is clocked at 3.20GHz with a turbo frequency of 3.46GHz was not enough to handle powering the LLVMpipe driver. Between two and three cores there was not too much of an increase, but between three and four cores there was a larger increase just as with the increase going from five to six cores being comparatively a larger gain than four to five cores. Utilizing all six cores, of course, was ideal for LLVMpipe where the best results were to be found. When enabling Hyper Threading to tap into all 12 threads of this LGA-1366 CPU, the performance actually dropped at the lower resolutions and at the higher resolutions, there was only an incremental advantage to Hyper Threading.

World of Padman uses the ioquake3 engine, like OpenArena, but it tends to be a bit more demanding on the graphics driver. With World of Padman, LLVMpipe on the Core i7 970 is able to deliver 30+ frames per second up through 1024 x 768. The performance scaling across cores is similar to OpenArena.

Urban Terror is more demanding than the two prior tests and here even at 640 x 480, Gulftown with LLVMpipe had a tough time even breaking 30 frames per second. The performance, however, did continue to scale -- albeit not linearly -- with the available cores/threads.

Latest Articles & Reviews
  1. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  2. The Lenovo T450s Is Working Beautifully With Linux
  3. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  4. Linux 4.0 Hard Drive Comparison With Six File-Systems
  5. Lenovo ThinkPad T450s Broadwell Preview
  6. How Open-Source Allowed Valve To Implement VULKAN Much Faster On The Source 2 Engine
Latest Linux News
  1. Features Thus Far For The Linux 4.1 Kernel
  2. Intel's Turbostat Adds Skylake Support In Linux 4.1
  3. Microsoft's Open-Source Group Merges Back Into The Company
  4. EXT4 In Linux 4.1 Adds File-System Level Encryption
  5. Open-Source Ardour 4.0 Audio Software Has Big Improvements
  6. Linux-Powered Endless Computer Raises $100k+ In A Few Days
  7. GCC 5.1 RC2 Arrives, GCC 5.1 Planned For Next Week
  8. F2FS For Linux 4.1 Has New Features & Fixes
  9. Phoronix Server Upgrade This Weekend: Dual Haswell Xeons, 96GB DDR4
  10. Google's Experimental QUIC Transport Protocol Is Showing Promise
Most Viewed News This Week
  1. Nouveau: NVIDIA's New Hardware Is "VERY Open-Source Unfriendly"
  2. Linux 4.0 Kernel Released
  3. Linux 4.1 Brings Many Potentially Risky x86/ASM Changes
  4. Microsoft Announces An LLVM-Based Compiler For .NET
  5. VirtualBox 5.0 Beta 2 Released
  6. KDBUS Is Taking A Lot Of Heat, Might Be Delayed From Mainline Linux Kernel
  7. Mozilla Start Drafting Plans To Deprecate Insecure HTTP
  8. LibreOffice 4.5 Bumped To Become LibreOffice 5.0