本文選題：網(wǎng)絡(luò)　切入點(diǎn)：虛擬化　出處：《上海交通大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：在虛擬化環(huán)境中,I/O的中斷處理需要通過trap-and-emulation的機(jī)制實現(xiàn),然而trap-and-emulation會帶來高昂的處理器開銷。針對這個問題Huang等人[37]提出了基于中斷聚集的AIRC算法。該算法根據(jù)系統(tǒng)CPU的余量,動態(tài)調(diào)整中斷響應(yīng)的頻率,從而最大化利用CPU性能,以提高網(wǎng)絡(luò)帶寬。其中的不足表現(xiàn)為:一、網(wǎng)絡(luò)帶寬會受到物理設(shè)備(網(wǎng)卡等)限制,當(dāng)網(wǎng)絡(luò)負(fù)荷已達(dá)到實際額定值時,即便提高中斷響應(yīng)頻率,增加處理器占用時間,也不會進(jìn)一步獲得網(wǎng)絡(luò)帶寬的增加;二、其中動態(tài)控制使用的主要參數(shù)需要通過實驗來測定,這就影響了算法的準(zhǔn)確度和實用價值。針對以上兩方面的問題和挑戰(zhàn),本文開展了以下幾方面的研究工作:1)基于AIRC算法,提出了改進(jìn)的FAIRC算法:在FAIRC算法中,中斷響應(yīng)的頻度是否繼續(xù)提高,不僅取決于當(dāng)前處理器的性能余量,還要兼顧網(wǎng)絡(luò)帶寬的余量;2)基于Xen虛擬化平臺,設(shè)計并實現(xiàn)了面向Linux的FAIRC算法;3)基于Xen和Linux實驗環(huán)境,測試了FAIRC算法在netperf測試環(huán)境下對各類網(wǎng)絡(luò)流量的性能控制。通過在在Xen系統(tǒng)上運(yùn)行2~8個Guest OS,及最大帶寬1Gbps的網(wǎng)絡(luò)流量情況下進(jìn)行實驗,結(jié)果表明該算法能保證不小于900Mbps(約90%)的帶寬利用率。
[Abstract]:In a virtualized environment, the interrupt processing of I / O needs to be implemented through the mechanism of trap-and-emulation, but trap-and-emulation brings high processor overhead. In order to solve this problem, Huang et al proposed an AIRC algorithm based on interrupt aggregation, which is based on the margin of system CPU. The frequency of interrupt response is dynamically adjusted to maximize the use of CPU performance to improve the network bandwidth. Firstly, the network bandwidth is limited by physical devices (network cards, etc.), when the network load has reached the actual rating, Even if the interrupt response frequency is increased and the processor time is increased, the network bandwidth will not be further increased. Second, the main parameters used in dynamic control need to be measured experimentally. This affects the accuracy and practical value of the algorithm. In view of the above two problems and challenges, the following aspects of the research work: 1) based on the AIRC algorithm, an improved FAIRC algorithm is proposed: in the FAIRC algorithm, Whether the frequency of interrupt response continues to improve depends not only on the performance allowance of the current processor, but also on the allowance of network bandwidth. Based on Xen virtualization platform, the FAIRC algorithm for Linux is designed and implemented. It is based on Xen and Linux experimental environment. The performance control of FAIRC algorithm for all kinds of network traffic under netperf test environment is tested. Experiments are carried out under the condition of running 2 ~ 8 Guest OSs on Xen system and the maximum bandwidth of 1Gbps network traffic. The results show that this algorithm can guarantee bandwidth utilization of not less than 900 Mbpss.
【學(xué)位授予單位】：上海交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.01

【共引文獻(xiàn)】

相關(guān)期刊論文 前2條

1 馬永紅;高潔;;基于嵌入式馬爾可夫鏈的網(wǎng)絡(luò)防火墻性能建模與分析[J];計算機(jī)應(yīng)用研究;2014年05期

2 陳渝龍;;重采樣與機(jī)器學(xué)習(xí)結(jié)合的防火墻鏈接動態(tài)分配[J];科技通報;2015年10期

相關(guān)碩士學(xué)位論文 前5條

1 張斌;Linux平臺下高速網(wǎng)絡(luò)數(shù)據(jù)捕獲的研究與應(yīng)用[D];華北電力大學(xué);2013年

2 武樂平;基于物聯(lián)網(wǎng)的電池化成測試系統(tǒng)設(shè)計[D];武漢理工大學(xué);2013年

3 張寅;基于SOC的網(wǎng)絡(luò)數(shù)據(jù)傳輸控制器研究與設(shè)計[D];華中科技大學(xué);2013年

4 陳疆路;虛擬化架構(gòu)下基于SR-IOV的網(wǎng)絡(luò)帶寬分配的研究[D];上海交通大學(xué);2014年

5 密榮榮;林區(qū)火災(zāi)高效數(shù)據(jù)捕獲監(jiān)測系統(tǒng)的設(shè)計與實現(xiàn)[D];大連理工大學(xué);2014年

，

本文編號：1599990