Battery Life Toolkit (BLTK)

A Description of the Workloads

Note: For information on the numbers collected by running these workloads, see the Statistics section below.

• Idle workload
  The idle workload simply executes the framework, without invoking any programs.
• Reader workload
  The web reader workload opens, in Firefox*, an HTML-formatted version of War and Peace by Leo Tolstoy and then sends "next page" keyboard events to the browser every two minutes, simulating interaction with the human reader.
• Office workload
  Open Office rev. 1.1.4 was chosen for this toolkit because it is stable and freely available. It is intended to be automatically installed by the toolkit to avoid any variation in results, due to local settings and version differences. Currently three applications from OpenOffice suite are used for the Office workload: oowriter, oocalc, and oodraw. The set of common operations is applied to these applications to simulate activities, typical for office application users.
  
  oowriter
  Using oowriter, the following operations are performed:
  • text typing
  • text pattern replacement
  • file saving
  
  oocalc
  Using oocalc, the following operations are performed:
  • creating spreadsheets
  • editing cells values
  • assigning math expressions to the cell
  • expanding math expressions over a set of cells
  • assigning a set of cells to a math expression
  • file saving
  
  oodraw
  Using oodraw, the following operations are performed:
  • duplicating images
  • moving an image over a document
  • typing text over an image
  • inserting a spreadsheet
  • file saving


• DVD playing workload
  “mplayer” plays a DVD movie.
  Note: mplayer does not report frame rate to the toolkit framework.
  For battery life comparisons, an equal work:time ratio must be maintained. It is assumed, but not verified in the BLTK framework that modern systems play DVD movies at equal frame rates.
• Software developer workload
  The software developer workload mimics a Linux ACPI kernel developer. It invokes vi, to insert a comment string into one of the Linux ACPI header files, and then invokes make –j N on a Linux kernel source tree, where N is chosen to be three times the number of processors in a system.
• 3D-Game workload
  The unreal tournament 2004 demo is used as a 3D-game workload. It is freely available and also reports performance data.

Statistics

• Numbers collected running workload
• List