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

Two Years With Linux BFS, The Brain Fuck Scheduler

Michael Larabel

Published on 16 August 2011
Written by Michael Larabel
Page 2 of 4 - 72 Comments

Testing began with the Apache web-sever benchmark, which illustrated a difference in the original BFS benchmarking, and was still the case. When only one of the CPU cores was enabled, the Brain Fuck Scheduler came ahead of the Completely Fair Scheduler by about 5%, when two cores were enabled the CFS and BFS schedulers performed close to the same, and then when all four cores of the Core i5 2500K were enabled the Brain Fuck Scheduler was rather fucked. CFS was approximately 36% faster than BFS for this web-server benchmark on the quad-core Intel Sandy Bridge system. The Apache performance under BFS had only scaled by 9% where as the CFS was up by 46%.

While the results for Apache were rather interesting in comparing the BFS and CFS schedulers, using the NGINX web server was the opposite. This lightweight, high-performance web server was not impacted much by the switch in CPU schedulers, but it also had not scaled when going from the dual-core to quad-core configuration.

C-Ray is a very well multi-threaded ray-tracer, but using the Brain Fuck Scheduler was of no benefit on the Intel Sandy Bridge system. However, the system with the BFS scheduler was more responsive during the test process.

Latest Linux Hardware Reviews
  1. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. AMD Catalyst 14.4 On Linux With Radeon R3 APU Graphics
  2. Red Hat Enterprise Linux 7.0 RC Benchmarks
  3. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  4. The Performance Of Fedora 20 Updated
Latest Linux News
  1. NGINX 1.6 Brings SPDY 3.1 & Other New Features
  2. Linux Foundation Announces A Core Infrastructure Initiative
  3. More Steam Linux Tests/Benchmarks Might Be Coming
  4. NVIDIA's Amazing Single-Board ARM Computer Might Be Delayed
  5. Fedora 21 To Get A Playground, New Features
  6. PC-BSD Is Developing Its Own Desktop Environment
  7. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  8. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  9. Google Web Designer Is Now Natively Available On Linux
  10. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
  11. Audacious 3.5 Lightweight Audio Player Released
  12. Steam Updated For Ubuntu 14.04 LTS, SteamOS
Latest Forum Discussions
  1. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  2. What Else Would You Like To See On Phoronix This Spring?
  3. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  4. The GNOME Foundation Is Running Short On Money
  5. The Most Amazing OpenGL Tech Demo In 64kb
  6. Announcing radeontop, a tool for viewing the GPU usage
  7. New card. Open source drivers only.
  8. Script for Fan Speed Control