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

The Cost of SELinux, Audit, & Kernel Debugging

Michael Larabel

Published on 13 August 2009
Written by Michael Larabel
Page 1 of 6 - 29 Comments

When benchmarking development releases of Fedora in particular, they often end up being much slower than the final build and perform lower when compared against some of the other leading desktop distributions. As we have mentioned in previous articles, this is generally due to the debugging support enabled within the development builds of Fedora. To see just what the performance cost is, we have compared the Fedora 11 performance of the normal kernel against the kernel-debug package. Additionally, we also compared the performance when disabling SELinux and system auditing support.

Our test system for this article was an ASRock NetTop ION 330, which is made up of an Intel Atom 330 dual-core CPU, an ASRock AMCP7A-ION motherboard, 2GB of DDR2 system memory, a 320GB Seagate ST9320325AS SATA 2.0 drive, and the NVIDIA GeForce 9400M ION graphics.

Fedora 11 x86_64 was running with the Linux 2.6.29 kernel, GNOME 2.26.1, X Server 1.6.2 RC1, the NVIDIA 190.18 display driver, GCC 4.4.0, and an EXT4 file-system. Besides what we were testing in this article, all of the settings and packages were left stock. For our benchmarking we used version 2.0 of the Phoronix Test Suite.

The tests we ran in looking at the Fedora Linux performance under the different conditions were World of Padman, Apache Benchmark, LAME MP3 encoding, FFmpeg, Bwfirt, timed Hmmer Search, Threaded I/O Tester, PostMark, Dbench, GraphicsMagick, Crafty, dcraw, SQLite, and PostgreSQL pgbench. The "Stock" results were obtained when running Fedora 11 with all of its stock options/packages. The "No SELinux or Audit" was obtained when both SELinux and Audit were disabled at boot-time, but besides that was the same configuration as "Stock". Lastly, the "Kernel Debug" results were recorded when installing the kernel-debug package for the same kernel version and while SELinux and Audit returned to their default state of being enabled. The kernel-debug package contains all of the debugging code that the standard kernel does not.

<< Previous Page
1
Latest Linux Hardware Reviews
  1. ASRock X99 Extreme3 Is An Affordable Choice For Linux Users
  2. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  3. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  4. OCZ Vector 150 SSD On Linux
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Heterogeneous Memory Management Is Coming Along For The Linux Kernel
  2. NTP Is The Latest Project Struck By Security Issues
  3. LDC 0.15.1 Released For A D Compiler In LLVM
  4. Fedora Doesn't Yet Enable F2FS File-System Support
  5. XZ 5.2 Adds New Multi-Threaded Options
  6. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  7. Server-Side XCB Is Being Discussed For The X.Org Server
  8. Adreno A4xx Rendering With Freedreno Takes Shape
  9. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  10. X.Org Server 1.16.3 Released To Fix Security Issues
Latest Forum Discussions
  1. Need some hand holding with upgrading xserver
  2. Maker3D - create your 3D RPG
  3. FPS capped on Linux (AMD fglrx drivers)
  4. Looking for an nVidia GPU, but not sure how well they are supported.
  5. Speeding up systemd networking service
  6. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  7. Are there an app using HSA ?
  8. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems