schedulingforreducedcpuenergy(參考版)
2024-07-28 17:01本頁面
【正文】 Excess Cycles Q u i c k T i m e ? a n d a d e c o m p r e s s o ra re n e e d e d t o s e e t h i s p i c t u r e . Peak in excess cycles shifts right as interval len. Increases Longer scheduling interval = more excess cycles built up Evaluation: Different Minimum Voltage Limits Q u i c k T i m e ? a n d a d e c o m p r e s s o ra re n e e d e d t o s e e t h i s p i c t u r e . V is almost as good as V Relative savings for diff. min. voltages Evaluation: Changing The Inverval Length Q u i c k T i m e ? a n d a d e c o m p r e s s o ra re n e e d e d t o s e e t h i s p i c t u r e . A longer adjustment period results in more savings Evaluation: Average Excess Cycles [1] Q u i c k T i m e ? a n d a d e c o m p r e s s o ra re n e e d e d t o s e e t h i s p i c t u r e . Lower min. voltage = more excess cycles Longer intervals = accumulate more excess cycles Energy savings is function of the interval size Evaluation: Average Excess Cycles [2] Q u i c k T i m e ? a n d a d e c o m p r e s s o ra re n e e d e d t o s e e t h i s p i c t u r e . Discussion amp。 undesirable ? Bad response time ? FUTURE (boundeddelay limitedfuture) ? Taking the future trace of a small window ? Window sizes: 1 ms ~ 400 sec ? Impractical but desirable ? Good response time on a window of 10 to 50
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