Download Advances in Grid and Pervasive Computing: 7th International by Thepparit Banditwattanawong (auth.), Ruixuan Li, Jiannong PDF

By Thepparit Banditwattanawong (auth.), Ruixuan Li, Jiannong Cao, Julien Bourgeois (eds.)

This e-book constitutes the refereed court cases of the seventh foreign convention on Grid and Pervasive Computing, GPC 2012, held in Hong Kong, China, in may perhaps 2012. The nine revised complete papers and 19 brief papers have been rigorously revised and chosen from fifty five submissions. they're equipped in topical sections on cloud computing, grid and repair computing, eco-friendly computing, cellular and pervasive computing, scheduling and function, and belief and safeguard. additionally integrated are four papers provided on the 2012 foreign Workshop on cellular Cloud and Ubiquitous Computing (Mobi-Cloud 2012) held along with GPC 2012.

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If there are such flows, their minimum start tags are adjusted to current time, preventing them from being penalized in the future. Second, if a request arrives in an idle flow, we grant it equal chances to be scheduled. This is done by adjusting all the priority tags with an identical shift so that the minimum priority tags of all the flows starts from current time. AssignTags: pCloud algorithm assigns three tags to arriving requests, start tags, finish tags, and priority tags. Normally, start tags record the arrival time of requests.

Using the new local throughput parameter generated in APM, we update the number of tokens. AdjustTags: Two goals are achieved in tag adjustment phase. First, we detect the flows that had utilized spare capacity. This is indicated by a minimum start tag that lags current time. If there are such flows, their minimum start tags are adjusted to current time, preventing them from being penalized in the future. Second, if a request arrives in an idle flow, we grant it equal chances to be scheduled. This is done by adjusting all the priority tags with an identical shift so that the minimum priority tags of all the flows starts from current time.

400 200 OLTP WebSearch 350 OLTP WebSearch 180 Arrival Rate(IOPS) Arrival Rate(IOPS) 160 300 250 200 150 140 120 100 80 60 100 40 50 0 20 0 10 20 30 40 50 60 70 80 0 90 0 10 20 30 Time(s) 40 50 60 70 (a) 90 (b) 200 700 Node 1 Node 2 Aggregate 180 600 160 Allocated Throughput(IOPS) Allocated Throughput(IOPS) 80 Time(s) 140 120 100 Node 1 Node 2 80 Aggregate 60 500 400 300 200 40 100 20 0 0 10 20 30 40 50 60 70 Time(s) (c) 80 90 0 0 10 20 30 40 50 60 70 80 90 Time(s) (d) Fig. 3. 2 SLO Decomposition First we evaluate the effectiveness of Access Pattern Modeling.

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