An analytical model for multi-tier internet services and its applications Export

@inproceedings{citeulike:326951, abstract = {Since many Internet applications employ a multi-tier architecture, in this paper, we focus on the problem of analytically modeling the behavior of such applications. We present a model based on a network of queues, where the queues represent different tiers of the application. Our model is sufficiently general to capture (i) the behavior of tiers with significantly different performance characteristics and (ii) application idiosyncrasies such as session-based workloads, concurrency limits, and caching at intermediate tiers. We validate our model using real multi-tier applications running on a Linux server cluster. Our experiments indicate that our model faithfully captures the performance of these applications for a number of workloads and configurations. For a variety of scenarios, including those with caching at one of the application tiers, the average response times predicted by our model were within the 95\% confidence intervals of the observed average response times. Our experiments also demonstrate the utility of the model for dynamic capacity provisioning, performance prediction, bottleneck identification, and session policing. In one scenario, where the request arrival rate increased from less than 1500 to nearly 4200 requests/min, a dynamic provisioning technique employing our model was able to maintain response time targets by increasing the capacity of two of the application tiers by factors of 2 and 3.5, respectively.}, address = {New York, NY, USA}, author = {Urgaonkar, Bhuvan and Pacifici, Giovanni and Shenoy, Prashant and Spreitzer, Mike and Tantawi, Asser}, booktitle = {SIGMETRICS '05: Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems}, citeulike-article-id = {326951}, citeulike-linkout-0 = {http://portal.acm.org/citation.cfm?id=1064252}, citeulike-linkout-1 = {http://dx.doi.org/10.1145/1064212.1064252}, doi = {10.1145/1064212.1064252}, isbn = {1-59593-022-1}, keywords = {provisioning}, location = {Banff, Alberta, Canada}, month = {June}, number = {1}, pages = {291--302}, posted-at = {2009-08-04 11:29:58}, priority = {2}, publisher = {ACM}, title = {An analytical model for multi-tier internet services and its applications}, url = {http://dx.doi.org/10.1145/1064212.1064252}, volume = {33}, year = {2005} }

TY - CONF ID - citeulike:326951 L3 - citeulike-article-id:326951 N2 - Since many Internet applications employ a multi-tier architecture, in this paper, we focus on the problem of analytically modeling the behavior of such applications. We present a model based on a network of queues, where the queues represent different tiers of the application. Our model is sufficiently general to capture (i) the behavior of tiers with significantly different performance characteristics and (ii) application idiosyncrasies such as session-based workloads, concurrency limits, and caching at intermediate tiers. We validate our model using real multi-tier applications running on a Linux server cluster. Our experiments indicate that our model faithfully captures the performance of these applications for a number of workloads and configurations. For a variety of scenarios, including those with caching at one of the application tiers, the average response times predicted by our model were within the 95% confidence intervals of the observed average response times. Our experiments also demonstrate the utility of the model for dynamic capacity provisioning, performance prediction, bottleneck identification, and session policing. In one scenario, where the request arrival rate increased from less than 1500 to nearly 4200 requests/min, a dynamic provisioning technique employing our model was able to maintain response time targets by increasing the capacity of two of the application tiers by factors of 2 and 3.5, respectively. CY - Banff, Alberta, Canada IS - 1 SN - 1-59593-022-1 AD - New York, NY, USA EP - 302 TI - An analytical model for multi-tier internet services and its applications PB - ACM VL - 33 T2 - SIGMETRICS '05: Proceedings of the 2005 ACM SIGMETRICS international conference on Measurement and modeling of computer systems SP - 291 KW - provisioning AU - Urgaonkar, Bhuvan AU - Pacifici, Giovanni AU - Shenoy, Prashant AU - Spreitzer, Mike AU - Tantawi, Asser PY - 2005/06// UR - http://dx.doi.org/10.1145/1064212.1064252 ER -