Proceedings of the Tenth European Conference on Computer Systems最新文献_第2页

μPnP: plug and play peripherals for the internet of things μPnP:即插即用的物联网外设

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741980

F. Yang, Nelson Matthys, R. Bachiller, Sam Michiels, W. Joosen, D. Hughes

引用次数: 38

Synapse: a microservices architecture for heterogeneous-database web applications Synapse:用于异构数据库web应用程序的微服务架构

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741975

N. Viennot, Mathias Lécuyer, Jonathan Bell, Roxana Geambasu, Jason Nieh

{"title":"Synapse: a microservices architecture for heterogeneous-database web applications","authors":"N. Viennot, Mathias Lécuyer, Jonathan Bell, Roxana Geambasu, Jason Nieh","doi":"10.1145/2741948.2741975","DOIUrl":"https://doi.org/10.1145/2741948.2741975","url":null,"abstract":"The growing demand for data-driven features in today's Web applications -- such as targeting, recommendations, or predictions -- has transformed those applications into complex conglomerates of services operating on each others' data without a coherent, manageable architecture. We present Synapse, an easy-to-use, strong-semantic system for large-scale, data-driven Web service integration. Synapse lets independent services cleanly share data with each other in an isolated and scalable way. The services run on top of their own databases, whose layouts and engines can be completely different, and incorporate read-only views of each others' shared data. Synapse synchronizes these views in real-time using a new scalable, consistent replication mechanism that leverages the high-level data models in popular MVC-based Web applications to replicate data across heterogeneous databases. We have developed Synapse on top of the popular Web framework Ruby-on-Rails. It supports data replication among a wide variety of SQL and NoSQL databases, including MySQL, Oracle, PostgreSQL, MongoDB, Cassandra, Neo4j, and Elasticsearch. We and others have built over a dozen microservices using Synapse with great ease, some of which are running in production with over 450,000 users.","PeriodicalId":119291,"journal":{"name":"Proceedings of the Tenth European Conference on Computer Systems","volume":"238 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120942609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 41

High-performance determinism with total store order consistency 具有总存储顺序一致性的高性能确定性

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741960

Timothy Merrifield, Joseph Devietti, Jakob Eriksson

引用次数: 17

An in-memory object caching framework with adaptive load balancing 具有自适应负载平衡的内存对象缓存框架

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741967

Yue Cheng, Aayush Gupta, A. Butt

{"title":"An in-memory object caching framework with adaptive load balancing","authors":"Yue Cheng, Aayush Gupta, A. Butt","doi":"10.1145/2741948.2741967","DOIUrl":"https://doi.org/10.1145/2741948.2741967","url":null,"abstract":"The extreme latency and throughput requirements of modern web applications are driving the use of distributed in-memory object caches such as Memcached. While extant caching systems scale-out seamlessly, their use in the cloud --- with its unique cost and multi-tenancy dynamics --- presents unique opportunities and design challenges. In this paper, we propose MBal, a high-performance in-memory object caching framework with adaptive Multiphase load Balancing, which supports not only horizontal (scale-out) but vertical (scale-up) scalability as well. MBal is able to make efficient use of available resources in the cloud through its fine-grained, partitioned, lockless design. This design also lends itself naturally to provide adaptive load balancing both within a server and across the cache cluster through an event-driven, multi-phased load balancer. While individual load balancing approaches are being lever-aged in in-memory caches, MBal goes beyond the extant systems and offers a holistic solution wherein the load balancing model tracks hotspots and applies different strategies based on imbalance severity -- key replication, server-local or cross-server coordinated data migration. Performance evaluation on an 8-core commodity server shows that compared to a state-of-the-art approach, MBal scales with number of cores and executes 2.3x and 12x more queries/second for GET and SET operations, respectively.","PeriodicalId":119291,"journal":{"name":"Proceedings of the Tenth European Conference on Computer Systems","volume":"317 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133857448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 66

Simba: tunable end-to-end data consistency for mobile apps Simba:移动应用的可调端到端数据一致性

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741974

Dorian Perkins, Nitin Agrawal, Akshat Aranya, Curtis Yu, Younghwan Go, H. Madhyastha, C. Ungureanu

{"title":"Simba: tunable end-to-end data consistency for mobile apps","authors":"Dorian Perkins, Nitin Agrawal, Akshat Aranya, Curtis Yu, Younghwan Go, H. Madhyastha, C. Ungureanu","doi":"10.1145/2741948.2741974","DOIUrl":"https://doi.org/10.1145/2741948.2741974","url":null,"abstract":"Developers of cloud-connected mobile apps need to ensure the consistency of application and user data across multiple devices. Mobile apps demand different choices of distributed data consistency under a variety of usage scenarios. The apps also need to gracefully handle intermittent connectivity and disconnections, limited bandwidth, and client and server failures. The data model of the apps can also be complex, spanning inter-dependent structured and unstructured data, and needs to be atomically stored and updated locally, on the cloud, and on other mobile devices. In this paper we study several popular apps and find that many exhibit undesirable behavior under concurrent use due to inadequate treatment of data consistency. Motivated by the shortcomings, we propose a novel data abstraction, called a sTable, that unifies a tabular and object data model, and allows apps to choose from a set of distributed consistency schemes; mobile apps written to this abstraction can effortlessly sync data with the cloud and other mobile devices while benefiting from end-to-end data consistency. We build Simba, a data-sync service, to demonstrate the utility and practicality of our proposed abstraction, and evaluate it both by writing new apps and porting existing inconsistent apps to make them consistent. Experimental results show that Simba performs well with respect to sync latency, bandwidth consumption, server throughput, and scales for both the number of users and the amount of data.","PeriodicalId":119291,"journal":{"name":"Proceedings of the Tenth European Conference on Computer Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125201681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 40

Process-level power estimation in VM-based systems 基于虚拟机系统的进程级功率估计

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741971

Maxime Colmant, Mascha Kurpicz-Briki, P. Felber, L. Huertas, Romain Rouvoy, Anita Sobe

{"title":"Process-level power estimation in VM-based systems","authors":"Maxime Colmant, Mascha Kurpicz-Briki, P. Felber, L. Huertas, Romain Rouvoy, Anita Sobe","doi":"10.1145/2741948.2741971","DOIUrl":"https://doi.org/10.1145/2741948.2741971","url":null,"abstract":"Power estimation of software processes provides critical indicators to drive scheduling or power capping heuristics. State-of-the-art solutions can perform coarse-grained power estimation in virtualized environments, typically treating virtual machines (VMs) as a black box. Yet, VM-based systems are nowadays commonly used to host multiple applications for cost savings and better use of energy by sharing common resources and assets. In this paper, we propose a fine-grained monitoring middleware providing real-time and accurate power estimation of software processes running at any level of virtualization in a system. In particular, our solution automatically learns an application-agnostic power model, which can be used to estimate the power consumption of applications. Our middleware implementation, named BitWatts, builds on a distributed actor implementation to collect process usage and infer fine-grained power consumption without imposing any hardware investment (e.g., power meters). BitWatts instances use high-throughput communication channels to spread the power consumption across the VM levels and between machines. Our experiments, based on CPU- and memory-intensive benchmarks running on different hardware setups, demonstrate that BitWatts scales both in number of monitored processes and virtualization levels. This non-invasive monitoring solution therefore paves the way for scalable energy accounting that takes into account the dynamic nature of virtualized environments.","PeriodicalId":119291,"journal":{"name":"Proceedings of the Tenth European Conference on Computer Systems","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127615050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 67

Proceedings of the Tenth European Conference on Computer Systems 第十届欧洲计算机系统会议论文集

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948

Laurent Réveillère, T. Harris, M. Herlihy

引用次数: 10

Application-assisted live migration of virtual machines with Java applications 应用程序辅助的带有Java应用程序的虚拟机实时迁移

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741950

Kai-yuan Hou, K. Shin, Jan-Lung Sung

{"title":"Application-assisted live migration of virtual machines with Java applications","authors":"Kai-yuan Hou, K. Shin, Jan-Lung Sung","doi":"10.1145/2741948.2741950","DOIUrl":"https://doi.org/10.1145/2741948.2741950","url":null,"abstract":"Live migration of virtual machines (VMs) can consume excessive time and resources, and may affect application performance significantly if VM memory pages get dirtied faster than their content can be transferred to the destination. Existing approaches to this problem transfer memory content faster with high-speed networks, slow down the dirtying of memory pages by throttling the execution of applications, or reduce the amount of memory content to be transferred, for example, using compression. However, these approaches incur high resource costs or application performance penalties. In this paper, we propose to skip the transfer of VM memory pages that need not be migrated for the execution of running applications at the destination, by exploiting applications' assistance. We have designed a generic framework for application-assisted live migration and then used it to build and evaluate JAVMM, which migrates VMs running various types of Java applications skipping the transfer of garbage in Java memory. Our experimental results show that JAVMM can reduce the completion time, the network traffic of transferring memory pages, and the application downtime of Java VM migration, all by up to over 90%, compared to the vanilla Xen VM migration, without incurring noticeable performance penalty to applications.","PeriodicalId":119291,"journal":{"name":"Proceedings of the Tenth European Conference on Computer Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128944059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 20

Maxoid: transparently confining mobile applications with custom views of state Maxoid:透明地限制带有自定义状态视图的移动应用

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741966

Yuanzhong Xu, E. Witchel

引用次数: 29

Visigoth fault tolerance 西哥特容错

Proceedings of the Tenth European Conference on Computer Systems Pub Date : 2015-04-17 DOI: 10.1145/2741948.2741979

D. Porto, J. Leitao, Cheng Li, Allen Clement, Aniket Kate, F. Junqueira, R. Rodrigues

引用次数: 29