Performance control apparatus and method for data processing system

• US 20070021942A1
• Filed: 09/28/2006
• Published: 01/25/2007
• Est. Priority Date: 09/12/2001
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Sato, Masaru, Miyata, Katsuhisa
• Granted Patent: US 7,328,129 B2
• Time in Patent Office: Days
• US Class Current: 702/182
• CPC Class Codes: G06F 11/3409 for performance assessment
• CPC Class Codes: G06F 11/3476 Data logging G06F11/14, G06F11/2205 take precedence
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: G06F 2221/2135 Metering
• CPC Class Codes: G06F 2221/2151 Time stamp
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A processing unit (processor) performs processing of programs. A monitoring unit measures the rate of operation of an instruction processor in the processing unit. Information which is a standard for judging modification of the performance is stored in a control information memory unit. A control unit judges on the basis of the operation rate of the processor collected by the monitoring unit and the control information stored in the control information memory unit whether it is necessary to modify the performance or not and controls to modify the performance of the processor on the basis of the judged result.

Claims

1. A performance control apparatus comprising:

operation processing means that can control performance represented by the number of instructions executed per unit time;

monitoring means that measures the performance of said operation processing means at predetermined intervals;

performance control means that controls to modify the performance of said operation processing means;

control information memory means that stores control information which is a standard for modifying the performance of said operation processing means; and

history information memory means that stores history information of the performance of said operation processing means measured by said monitoring means;

said performance control means controlling the performance of said operation processing means on the basis of said control information and said history information.

2-10. -10. (canceled)