{"title":"虚拟化挑战:从服务器整合的角度来看","authors":"Hui Lv, Yaozu Dong, Jiangang Duan, Kevin Tian","doi":"10.1145/2151024.2151030","DOIUrl":null,"url":null,"abstract":"Server consolidation, by running multiple virtual machines on top of a single platform with virtualization, provides an efficient solu-tion to parallelism and utilization of modern multi-core processors system. However, the performance and scalability of server con-solidation solution on modern massive advanced server is not well addressed. In this paper, we conduct a comprehensive study of Xen per-formance and scalability characterization running SPECvirt_sc2010, and identify that large memory and cache footprint, due to the unnecessary high frequent context switch, introduce additional challenges to the system performance and scalability. We propose two optimizations (dynamically-allocable tasklets and context-switch rate controller) to improve the performance. The results show the improved memory and cache efficiency with a reduction of the overall CPI, resulting in an improvement of server consolidation capability by 15% in SPECvirt_sc2010. In the meantime, our optimization achieves an up to 50% acceleration of service response, which greatly improves the QoS of Xen virtualization solution.","PeriodicalId":202844,"journal":{"name":"International Conference on Virtual Execution Environments","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"24","resultStr":"{\"title\":\"Virtualization challenges: a view from server consolidation perspective\",\"authors\":\"Hui Lv, Yaozu Dong, Jiangang Duan, Kevin Tian\",\"doi\":\"10.1145/2151024.2151030\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Server consolidation, by running multiple virtual machines on top of a single platform with virtualization, provides an efficient solu-tion to parallelism and utilization of modern multi-core processors system. However, the performance and scalability of server con-solidation solution on modern massive advanced server is not well addressed. In this paper, we conduct a comprehensive study of Xen per-formance and scalability characterization running SPECvirt_sc2010, and identify that large memory and cache footprint, due to the unnecessary high frequent context switch, introduce additional challenges to the system performance and scalability. We propose two optimizations (dynamically-allocable tasklets and context-switch rate controller) to improve the performance. The results show the improved memory and cache efficiency with a reduction of the overall CPI, resulting in an improvement of server consolidation capability by 15% in SPECvirt_sc2010. In the meantime, our optimization achieves an up to 50% acceleration of service response, which greatly improves the QoS of Xen virtualization solution.\",\"PeriodicalId\":202844,\"journal\":{\"name\":\"International Conference on Virtual Execution Environments\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"24\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Conference on Virtual Execution Environments\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/2151024.2151030\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Conference on Virtual Execution Environments","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/2151024.2151030","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Virtualization challenges: a view from server consolidation perspective
Server consolidation, by running multiple virtual machines on top of a single platform with virtualization, provides an efficient solu-tion to parallelism and utilization of modern multi-core processors system. However, the performance and scalability of server con-solidation solution on modern massive advanced server is not well addressed. In this paper, we conduct a comprehensive study of Xen per-formance and scalability characterization running SPECvirt_sc2010, and identify that large memory and cache footprint, due to the unnecessary high frequent context switch, introduce additional challenges to the system performance and scalability. We propose two optimizations (dynamically-allocable tasklets and context-switch rate controller) to improve the performance. The results show the improved memory and cache efficiency with a reduction of the overall CPI, resulting in an improvement of server consolidation capability by 15% in SPECvirt_sc2010. In the meantime, our optimization achieves an up to 50% acceleration of service response, which greatly improves the QoS of Xen virtualization solution.