J
Jose Renato Santos
Researcher at Hewlett-Packard
Publications - 56
Citations - 2630
Jose Renato Santos is an academic researcher from Hewlett-Packard. The author has contributed to research in topics: Network packet & Virtual machine. The author has an hindex of 23, co-authored 56 publications receiving 2553 citations.
Papers
More filters
Proceedings ArticleDOI
Diagnosing performance overheads in the xen virtual machine environment
TL;DR: Xenoprof is presented, a system-wide statistical profiling toolkit implemented for the Xen virtual machine environment that will facilitate a better understanding of performance characteristics of Xen's mechanisms allowing the community to optimize the Xen implementation.
Proceedings Article
Bridging the gap between software and hardware techniques for I/O virtualization
TL;DR: This paper reduces execution costs for conventional NICs by 56% on the receive path, and achieves close to direct I/O performance for network devices supporting multiple hardware receive queues, making the Xen driver domain model an attractive solution for I/o virtualization for a wider range of scenarios.
Gatekeeper: supporting bandwidth guarantees for multi-tenant datacenter networks
TL;DR: Experiments on the Xen-based implementation of Gatekeeper in a datacenter cluster demonstrate effective and flexible control of ingress/egress link bandwidth for tenant virtual machines under both TCP and greedy unresponsive UDP traffic.
Proceedings ArticleDOI
ElasticSwitch: practical work-conserving bandwidth guarantees for cloud computing
Lucian Popa,Praveen Yalagandula,Sujata Banerjee,Jeffrey C. Mogul,Yoshio Turner,Jose Renato Santos +5 more
TL;DR: ElasticSwitch is an efficient and practical approach for providing bandwidth guarantees and is work-conserving, even in challenging situations, and can be fully implemented in hypervisors, without requiring a specific topology or any support from switches.
Proceedings ArticleDOI
System-level implications of disaggregated memory
Kevin T. Lim,Yoshio Turner,Jose Renato Santos,Alvin AuYoung,Jichuan Chang,Parthasarathy Ranganathan,Thomas F. Wenisch +6 more
TL;DR: A software-based prototype by extending the Xen hypervisor to emulate a disaggregated memory design wherein remote pages are swapped into local memory on-demand upon access is developed, showing that low-latency remote memory calls for a different regime of replacement policies than conventional disk paging.