发明名称 |
Processor for controlling performance in accordance with a chip temperature, information processing apparatus, and method of controlling processor |
摘要 |
A heat generation amount estimation unit acquires the number of sub processors currently in operation, acquires the current operating frequency, and estimates the amount of heat generation after a period &Dgr;t. A temperature control unit estimates the temperature after the period &Dgr;t based on the current temperature input from a temperature sensor and the amount of heat generation estimated, and compares it with a predetermined threshold temperature. If the predetermined threshold temperature is reached, the temperature control unit acquires the number of sub processors available in parallel after the period &Dgr;t from a task management unit, and consults a performance table to determine which operation point to shift to. A sub processor control unit and a frequency control unit switch to the number of sub processors in operation and the operating frequency accordingly. The performance table lists possible operation points in order of performance.
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申请公布号 |
US7831842(B2) |
申请公布日期 |
2010.11.09 |
申请号 |
US20050575041 |
申请日期 |
2005.04.08 |
申请人 |
SONY COMPUTER ENTERTAINMENT INC. |
发明人 |
ADACHI KENICHI;YAZAWA KAZUAKI;TAKIGUCHI IWAO;IMAI ATSUHIKO;TAMURA TETSUJI |
分类号 |
G06F1/00;G06F1/04;G06F1/20;G06F9/44;G06F9/50 |
主分类号 |
G06F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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