Global Patent Index - EP 1405171 A4

EP 1405171 A4 20050824 - METHOD AND APPARATUS TO USE TASK PRIORITY TO SCALE PROCESSOR PERFORMANCE

Title (en)

METHOD AND APPARATUS TO USE TASK PRIORITY TO SCALE PROCESSOR PERFORMANCE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR VERWENDUNG DER TASK-PRIORITÄT ZUR SKALIERUNG DER PROZESSORLEISTUNGSFÄHIGKEIT

Title (fr)

PROCEDE ET APPAREIL UTILISANT DES PRIORITES DE TACHES POUR ADAPTER LES PERFORMANCE D'UN PROCESSEUR

Publication

EP 1405171 A4 20050824 (EN)

Application

EP 02732004 A 20020603

Priority

  • US 0217309 W 20020603
  • US 87359101 A 20010604

Abstract (en)

[origin: WO02099639A1] The invention uses a general-purpose computer with a processor capable of operating at a plurality of performance levels, and has an operating system with the capability to set a plurality of task priority levels for task performed on the computer. The method reads a task's priority level, associates the task's priority level with a performance level, and sets the processor to operate at the performance level.

IPC 1-7

G06F 9/00; G06F 9/46

IPC 8 full level

G06F 9/48 (2006.01); G06F 9/50 (2006.01)

CPC (source: EP)

G06F 1/3203 (2013.01); G06F 1/324 (2013.01); G06F 1/329 (2013.01); G06F 1/3296 (2013.01); G06F 9/3869 (2013.01); G06F 9/4881 (2013.01); G06F 9/50 (2013.01); Y02D 10/00 (2017.12)

Citation (search report)

  • [X] SHIN YOUNGSOO ET AL: "Power conscious fixed priority scheduling for hard real-time systems", PROC DES AUTOM CONF; PROCEEDINGS - DESIGN AUTOMATION CONFERENCE 1999 IEEE, PISCATAWAY, NJ, USA, 1999, pages 134 - 139, XP002333591
  • [X] GOVIL K ET AL: "COMPARING ALGORITHMS FOR DYNAMIC SPEED-SETTING OF A LOW-POWER CPU", PROCEEDINGS OF THE FIRST ANNUAL INT. CONF ON MOBILE COMPUTING AND NETWORKING, 27 June 1997 (1997-06-27), pages 1 - 13, XP002306321
  • [A] YAO F ET AL: "A scheduling model for reduced CPU energy", FOUNDATIONS OF COMPUTER SCIENCE, 1995. PROCEEDINGS., 36TH ANNUAL SYMPOSIUM ON MILWAUKEE, WI, USA 23-25 OCT. 1995, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 23 October 1995 (1995-10-23), pages 374 - 382, XP010166714, ISBN: 0-8186-7183-1
  • See references of WO 02099639A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02099639 A1 20021212; CA 2469451 A1 20021212; EP 1405171 A1 20040407; EP 1405171 A4 20050824

DOCDB simple family (application)

US 0217309 W 20020603; CA 2469451 A 20020603; EP 02732004 A 20020603