【摘要】：為了更好地降低實(shí)時(shí)系統(tǒng)的功耗,本文以偶發(fā)任務(wù)為調(diào)度對(duì)象,提出了一種基于平衡因子的動(dòng)態(tài)偶發(fā)任務(wù)低能耗調(diào)度算法(LP-DSAFST)。LP-DSAFST算法分為兩個(gè)階段,第一階段根據(jù)釋放任務(wù)的負(fù)載調(diào)整處理器速度,充分利用處理器的資源;第二階段通過高優(yōu)先級(jí)任務(wù)提前完成剩余的空閑時(shí)間動(dòng)態(tài)更新處理器速度,并且當(dāng)處理器沒有任務(wù)執(zhí)行時(shí),根據(jù)平衡因子關(guān)鍵速度調(diào)度策略,判斷是否使用DPM技術(shù)將處理器進(jìn)入休眠狀態(tài)以達(dá)到進(jìn)一步降低能耗的目的。實(shí)驗(yàn)表明,新算法與DVSST和DSTLPSA算法相比節(jié)能效果更好,可以分別節(jié)約10.3%~62.5%和5.4%~20.6%的能耗。
[Abstract]:In order to better reduce the power consumption of the real-time system, this paper presents a dynamic contingency task low-energy-consumption scheduling algorithm (LP-DSAFST) based on a balance-factor. The LP-DSAFST algorithm is divided into two stages, and the first stage adjusts the processor speed according to the load of the releasing task. fully utilizing the resources of the processor; the second stage dynamically updating the processor speed by the high-priority task ahead of time, and scheduling the policy according to the key speed of the balance factor when the processor does not have a task to execute, it is judged whether to use the dpm technology to put the processor into the sleep state to achieve the purpose of further reducing the energy consumption. The results show that the new algorithm has better energy-saving effect than DVSST and DSTLPSA, and can save the energy consumption of 10.3% ~ 62.5% and 5.4% ~ 20.6%, respectively.
【作者單位】： 中國科學(xué)院沈陽計(jì)算技術(shù)研究所;中國科學(xué)院大學(xué);華僑大學(xué)計(jì)算機(jī)科學(xué)與技術(shù)學(xué)院;
【基金】：國家科技重大專項(xiàng)項(xiàng)目(2013ZX04007-011) 遼寧省博士啟動(dòng)基金項(xiàng)目(201501040)
【分類號(hào)】：TP301.6
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本文編號(hào)：2375748