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

Ubuntu 11.04: i686 vs. i686 PAE vs. x86_64

Michael Larabel

Published on 4 April 2011
Written by Michael Larabel
Page 6 of 9 - 43 Comments

The LZMA compression performance was improved by about 10% with the x86_64 kernel.

Using a 32-bit kernel with Physical Address Extension did not cause any change for the Core 2 Duo notebook but it did with the Core i7 notebook, likely because the PBZIP2 test can take advantage of the extra memory. The 64-bit setup though offered the best performance with the Core 2 Duo and Core i7 systems both being about 30% faster.

With the multi-threaded C-Ray ray-tracing benchmark, enabling PAE didn't provide any benefit for the ThinkPad T61 notebook with 4GB of memory, but it did provide a 10% performance boost for the Core i7 notebook with four cores (plus Hyper Threading) and 8GB of RAM. The x86_64 configuration was more than twice as fast for the Core 2 Duo notebook while the Core i7 notebook was enhanced by just under 40% with the 64-bit kernel.

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. AMD Releases New "AMDGPU" Linux Kernel Driver & Mesa Support
  2. A Gigabyte Sandy/Ivy Bridge Motherboard Now Handled By Coreboot
  3. Linux 3.16 Through Linux 4.0 Performance Benchmarks
  4. Intel's Windows Driver Now Supports OpenGL 4.4, Linux Driver Still With OpenGL 3.3
  5. DRM Graphics Updates Sent In For The Linux 4.1 Kernel
  6. More eBPF Improvements Heading To Linux 4.1
  7. LLDB Is Getting Into Shape For Linux 64-bit Debugging
  8. Wine-Staging 1.7.41 Works On Improved Debugging Support
  9. GNOME 3.18 Release Schedule: 23 September Release
  10. Library Operating System (LibOS) For Linux Still Being Pursued
Most Viewed News This Week
  1. Nouveau: NVIDIA's New Hardware Is "VERY Open-Source Unfriendly"
  2. Linux 4.1 Brings Many Potentially Risky x86/ASM Changes
  3. Microsoft Announces An LLVM-Based Compiler For .NET
  4. LibreOffice 4.5 Bumped To Become LibreOffice 5.0
  5. Linux Audio Is Being Further Modernized With The 4.1 Kernel
  6. KDBUS Is Taking A Lot Of Heat, Might Be Delayed From Mainline Linux Kernel
  7. VirtualBox 5.0 Beta 2 Released
  8. Mozilla Start Drafting Plans To Deprecate Insecure HTTP