Mohammad Hajjat Purdue University Joint work with:

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Mohammad Hajjat Purdue University Joint work with: Shankar P N (Purdue), David Maltz (Microsoft), Sanjay Rao (Purdue) and Kunwadee Sripanidkulchai (NECTEC Thailand) 1 Dealer: Application-aware Request Splitting for Interactive Cloud

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01
Mohammad Hajjat
Purdue University

Joint work with:
Shankar P N (Purdue), David Maltz (Microsoft), Sanjay Rao (Purdue) and Kunwadee Sripanidkulchai (NECTEC Thailand) 1 Dealer: Application-aware Request Splitting for Interactive Cloud Applications<br>
02
Performance of Interactive Applications 2 Interactive apps  stringent requirements on user response time
Amazon: every 100ms latency cost
1% in sales
Google: 0.5 sec’s delay increase  traffic
and revenue drop by 20%
Tail importance: SLA’s defined on 90%ile and higher response time =<br>
03
Cloud Computing: Benefits and Challenges 3 Benefits:
Elasticity
Cost-savings
Geo-distribution:
Service resilience, disaster recovery, better user experience, etc.
Challenges:
Performance is variable: [Ballani’11], [ Wang’10], [Li’10], [Mangot’09], etc.
Even worse, data-centers fail<br>