Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 57 for “"datacenters"”.
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Opportunistic Packet Forwarding for Proactive Transport in Datacenters
Proactive transport protocols in datacenters are designed to avoid congestion by regulating flow sending rates via credit allocation. However, when a new flow starts, it takes one Round-Trip Time (RTT) before credits can be assigned to the new flow. To avoid stalling flows, modern proactive …
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VM and workload fingerprinting for software defined datacenters
In this work we develop strategies for mining telemetry streams in virtualized clusters to automatically discover relationships between sets of virtual machines. Examples of relationships include correlations between virtual machines, similarities in resource consumption patterns or dominant …
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A hardware and software architecture for efficient datacenters
Datacenters host an increasing amount of the world's compute, powering a diverse set of applications that range from scientific computing and business analytics to massive online services such as social media and online maps. Despite their growing importance, however, datacenters suffer from low …
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Chorus: Model Kowledge Base for Perfomance Modeling in Datacenters
… several concurrent applications in large datacenters. However, uncontrolled resource sharing between co-hosted applications often results in performance degradation problems, thus creating violations of service level agreements (SLAs) for service providers. Therefore, in order to meet …
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Squeezing the most benefit from network parallelism in datacenters
… behind the scene. In particular, in today's datacenters that exhibit a high degree of multi-pathing, each logical path between a communicating pair in the one-big-switch abstraction is mapped to a set of paths that can carry traffic in parallel. Similarly, each one-big-switch abstraction …
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Scheduling for Reduced Tail Task Latencies in Highly Utilised Datacenters
Modern datacenters have become the backbone for running diverse workloads that increasingly comprise data-parallel computational jobs. Due to the ease of use and diversity of resources they host there has been a rise in the demand for datacenters leading to high volumes of traffic. Datacenters …
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Green HPC : a system design approach to energy-efficient datacenters
Green HPC is the new standard for High Performance Computing (HPC). This has now become the primary interest among HPC researchers because of a renewed emphasis on Total Cost of Ownership (TCO) and the pursuit of higher performance. Quite simply, the cost of operating modern HPC equipment can …
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Achieving high CPU efficiency and low tail latency in datacenters
As datacenters have proliferated over the last couple of decades and datacenter applications have grown increasingly complex, two competing goals have emerged for networks and servers in datacenters. On the one hand, applications demand low latency-on the order of microseconds-in order to respond …
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Flexplane : a programmable data plane for resource management in datacenters
… Flexplane, a programmable network data plane for datacenters. Flexplane enables users to express their schemes in a high-level language (C++) and then run real datacenter applications over them at hardware rates. We demonstrate that Flexplane can accurately reproduce the behavior of schemes …
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A cross-stack, network-centric architectural design for next-generation datacenters
This thesis proposes a full-stack, cross-layer datacenter architecture based on in-network computing and near-memory processing paradigms. The proposed datacenter architecture is built atop two principles: (1) utilizing commodity, off-the-shelf hardware (i.e., processor, DRAM, and network devices) …
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A regulated series-connected power delivery architecture for server clusters in highly efficient datacenters
The series-connected power delivery architecture is an essentially lossless way to deliver power directly from a high voltage bus to a number of low-voltage loads. The benefts of this architecture can be combined with voltage regulation of individual nodes through a technique known as differential …
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PCI Express multi-root switch reconfiguration during system operation
… data continues to expand, reliance on enterprise datacenters have become more and more critical. Evaluation of modern day datacenter performance has showed that datacenter servers are severely underutilized, resulting in inefficient use of physical and software resources. In order to alleviate …
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An analysis of the impact of datacenter temperature on energy efficiency
The optimal air temperature for datacenters is one of ways to improve energy efficiency of datacenter cooling systems. Many datacenter owners have been interested in raising the room temperature as a quick and simple method to increase energy efficiency. The purpose of this paper is both to provide …
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Principled Approaches for Latency Reduction in Networking Systems
… in traffic demands, driven by AI workloads in datacenters and the ubiquitous adoption of cloud services across the internet. This dissertation addresses three critical challenges in network systems: efficient scheduling of inference tasks, performance optimization in hybrid networks, and …
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SERenaDE: Hardware Acceleration of Cloud Serialization Frameworks
… frameworks are a fundamental operation of datacenters, as they enable language- and platform-neutral communication and storage. However, software serialization faces major performance bottlenecks, resulting in a significant fraction of cloud cycles dedicated to this process. Prior work has …
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Modelling orchestration
… they have expanded their scope out of private datacenters, into the public cloud, and now even towards the edge of the network. These are environments for which they are not designed, and while they share some characteristics with private datacenters, the differences are sufficiently …
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Improving fairness, throughput and blocking performance for long haul and short reach optical networks
… electronic-optical switching architectures for datacenters. We evaluated four mode and wavelength assignment heuristics and compared their throughput performance. We also included preliminary results of impact of the cascaded mode conversion constraint on network throughput. Datacenter and high …
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Uma plataforma robusta para gerência de recursos em nuvens IaaS
… Aurora, quanto cenários em que ha dois ou mais datacenters, cada um com recursos próprios. Nos dois cenários, cada instancia do Aurora tem acesso a todos os recursos da nuvem. Em caso de falha afetando uma das instancias do Aurora, outra instancia do gerenciador tem a capacidade de gerenciar …
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GreenMail: Reducing Email Service’s Carbon Emission with Minimum Cost
… on-site or off-site renewable energy in their datacenters in order to attract more customers. With such efforts have been paid, there are still some users who are aggressively calling for even cleaner Internet services. For example, over 500,000 Facebook users petitioned the social networking …
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Implementing accelerated key-value store: From SSDs to datacenter servers
… most important building blocks widely used in datacenters thanks to its simple interface. Key-value stores are often used as a internal engine for other databases. This thesis explores whether a modern flash-based solid-state drive (SSD) augmented with near-storage computations can be …
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