发明名称 |
Processor packing in an SMP server to conserve energy |
摘要 |
A data processing system includes a power supply, a plurality of processors wherein each processor is separately powerable by the power supply under operating system control. The operating system determines periodically a measure of system utilization and controls the switches to alter the number of active (powered) processors where the number of active processors reflects the measured system utilization and a set of utilization threshold values. System utilization may be based on the number of active tasks. The utilization thresholds preferably include a maximum threshold and a minimum threshold. A measured utilization exceeding the maximum threshold causes an increase in the number of active processors while utilization less than the minimum threshold causes a decrease in the number of active processors. The utilization thresholds may be determined from threshold factors that reflect time and date information, quality of service information, or a weighted average of historical utilization values. |
申请公布号 |
US8261285(B2) |
申请公布日期 |
2012.09.04 |
申请号 |
US20080059952 |
申请日期 |
2008.03.31 |
申请人 |
FELTER WESLEY MICHAEL;GHIASI SORAYA;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FELTER WESLEY MICHAEL;GHIASI SORAYA |
分类号 |
G06F3/00;G06F1/00;G06F1/04 |
主分类号 |
G06F3/00 |
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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