Josep M. Blanquer

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Provisioning of a shared server with guarantees is an important scheduling task that has led to significant work in a number of areas including link scheduling. Fair Queuing algorithms provide a method for proportionally sharing a single server among competing flows, however, they do not address the problem of sharing multiple servers. Multiserver systems(More)
In this paper we describe Quorum, a non-invasive approach to scalable quality-of-service provisioning that uses traffic shaping, admission control, and response monitoring at the border of an Internet site to ensure throughput and response time guarantees. We experimentally compare an implementation of Quorum both to hardware over-provisioning and to(More)
In this paper we argue that the best approach to providing Quality of Service (QoS) guarantees to current Internet services is to use admission control and traffic shaping techniques at the entrance points of Internet hosting sites. We propose a black-box approach that does not require knowledge, instrumentation, or modification of the system (hardware and(More)
ABSTRACT The World Wide Web has become a primary venue for disseminating information to large numbers of users. From news stories, to music videos, to driving directions, more and more people are turning to the web to nd information they need in their day-to-day lives. As web-based services become more complex, the traditional web model is becoming(More)
In this paper we describe Quorum: a new non-invasive software approach to scalable quality-of-service provisioning that uses traffic shaping, admission control, and response monitoring at the borders of the Internet hosting site to ensure throughput and response time guarantees. We compare Quorum both to over-provisioning and to Neptune – a research and now(More)
The fast-paced growth of the Internet’s user population is driving clustered architectures as the platform of choice for hosting high volume-services. The ability to provide a guaranteed service quality in such clustered architectures is becoming a need for today’s e-businesses. Most companies that currently offer such service guarantees rely on(More)
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