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

The Huge Disaster Within The Linux 2.6.35 Kernel

Michael Larabel

Published on 28 May 2010
Written by Michael Larabel
Page 2 of 5 - 184 Comments

The results from the second test case we are sharing are from the 7-Zip compression benchmark, which is measuring the MIPS count and not at all dependent upon the file-system. As you can see, even in a CPU bound test, both of these systems had regressed horribly. Since February the regression introduced in the Linux 2.6.35 kernel is by far the most significant affecting compress-7zip. The MIPS count for the 64-bit Atom 330 dropped by more than 30% while the other setup dropped by nearly 40%.

With the multi-threaded PBZIP2 compression test, this Linux 2.6.35 kernel performance problem is astonishing! With the Atom Z530 setup the time needed to compress a 256MB sample file nearly doubled while the other setup increased by 50%.

In the CPU-bound FFmpeg video encoding test, the time to encode a sample NTSC video file increased by over 30%, but the other system has strangely been unaffected.

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. Intel's Turbostat Adds Skylake Support In Linux 4.1
  2. Microsoft's Open-Source Group Merges Back Into The Company
  3. EXT4 In Linux 4.1 Adds File-System Level Encryption
  4. Open-Source Ardour 4.0 Audio Software Has Big Improvements
  5. Linux-Powered Endless Computer Raises $100k+ In A Few Days
  6. GCC 5.1 RC2 Arrives, GCC 5.1 Planned For Next Week
  7. F2FS For Linux 4.1 Has New Features & Fixes
  8. Phoronix Server Upgrade This Weekend: Dual Haswell Xeons, 96GB DDR4
  9. Google's Experimental QUIC Transport Protocol Is Showing Promise
  10. Red Hat Joins Khronos, The Group Behind OpenGL & Vulkan
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