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

Intel EIST SpeedStep

Michael Larabel

Published on 16 February 2006
Written by Michael Larabel
Page 3 of 5 - Comment On This Article

Similar to our first test in the AMD Cool 'n' Quiet article, we began by allowing the ThinkPad R52 to idle in GNOME v2.10 at 1400 x 1050 with the screensaver disabled. The idling process had lasted for about 30 minutes, and after that time had finished, the power consumption was recorded from the Seasonic PowerAngel and the CPU temperature was gathered from /proc/acpi/ibm/thermal. The same process was repeated again, but rather than being powered by the outlet, it utilized the battery, and after 30 minutes had expired, the present battery discharge rate was recorded via /proc/acpi/battery/BAT0/state. This entire process was done for each of the five Intel SpeedStep performance levels with the Pentium M 750 (1.86GHz, 1.60GHz, 1.33GHz, 1.06GHz, and 800MHz). In order to over-ride the automatic frequency and voltage levels, we used cpufreq-set to manually specify the operating frequency.

Latest Linux Hardware Reviews
  1. Trying The Configurable 45 Watt TDP With AMD's A10-7800 / A6-7400K
  2. Sumo's Omni Gets Reloaded
  3. AMD A10-7800 & A6-7400K APUs Run Great On Linux
  4. Radeon Gallium3D Is Running Increasingly Well Against AMD's Catalyst Driver
Latest Linux Articles
  1. Intel's Latest Linux Graphics Code Competes Against OS X 10.9
  2. Intel Sandy Bridge Gets A Surprise Boost From Linux 3.17
  3. Open-Source Radeon Graphics Have Some Improvements On Linux 3.17
  4. CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16
Latest Linux News
  1. Steam Now Supports VA-API For In-Home Game Streaming
  2. GNOME 3.14 Beta Released
  3. Mesa 10.3 Branched & RC1 Released, Mesa 10.4 On Master
  4. Intel Sandy Bridge Gains On Linux 3.17 Extend Beyond Graphics
  5. LinuxCon: What's Going On With Fedora.Next
  6. Canonical Joined The Khronos Group To Help Mir/Wayland Drivers
  7. EFL 1.11 Is A Big Milestone For Enlightenment Users
  8. DirectFB Updates GTK3 Support, Working Towards DirectFB 1.8
  9. Userptr Support Set For AMD Radeon GPUs In Linux 3.18
  10. NVIDIA Releases CUDA 6.5 As A Huge Update
Latest Forum Discussions
  1. OSS radeon driver for A10-7850K (Kaveri)
  2. Systemd 216 Piles On More Features, Aims For New User-Space VT
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Btrfs Gets Talked Up, Googler Encourages You To Try Btrfs
  5. AMD Offers Mantle For OpenGL-Next, Pushes Mantle To Workstations
  6. ATI CrossFire Does Not Support On This Platform When Enabling (Ubuntu Lucid)
  7. Dead Island for Linux (?)
  8. The dangers of Linux kernel development