Giovanni Pacifici
IBM
88 Papers
3.3K Citations
Giovanni Pacifici is an academic researcher from IBM. The author has contributed to research in topics: Quality of service & Scheduling (computing). The author has an hindex of 37, co-authored 88 publications. Previous affiliations of Giovanni Pacifici include Columbia University & Sapienza University of Rome.
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Papers
Patent
Digital content distribution using web broadcasting services
Magda Mahmoud Mourad,Jonathan P. Munson,Giovanni Pacifici,Ahmed N. Tantawy,Alaa Youssef +4 more
- 20 Jan 2000
TL;DR: In this article, a method for securely receiving data on a user's system from a web broadcast infrastructure with a plurality of channels is presented, which includes receiving promotional metadata from a first web broadcast channel, the promotional metadata related to data available for reception; assembling at least part of the promotional offering into a promotional offering for review by a user; selecting by the user, data to be received related to the metadata; and receiving data from a second web broadcast channels, the data selected from the promoted metadata, and wherein the data has been previously encrypted using a first encrypting key;
665
An analytical model for multi-tier internet services and its applications
Bhuvan Urgaonkar,Giovanni Pacifici,Prashant Shenoy,Mike Spreitzer,Asser N. Tantawi +4 more
- 06 Jun 2005
TL;DR: This paper presents a model based on a network of queues, where the queues represent different tiers of the application, sufficiently general to capture the behavior of tiers with significantly different performance characteristics and application idiosyncrasies such as session-based workloads, concurrency limits, and caching at intermediate tiers.
A scalable application placement controller for enterprise data centers
Chunqiang Tang,Malgorzata Steinder,Mike Spreitzer,Giovanni Pacifici +3 more
- 08 May 2007
TL;DR: This paper proposes a new algorithm that can produce within 30seconds high-quality solutions for hard placement problems with thousands of machines and thousands of applications, and has been implemented and adopted in a leading commercial middleware product for managing the performance of Web applications.
Real-time scheduling with quality of service constraints
TL;DR: An efficient real-time scheduling algorithm is introduced that substantially increases the schedulable region without incurring prohibitive complexity costs and is compared with the ones generated by the static priority scheduling algorithm and a variant of the minimum laxity threshold algorithm.
244
Patent
Markup system for shared HTML documents
Giovanni Pacifici,Alaa Youssef +1 more
- 29 Aug 1998
TL;DR: In this paper, a shared markup system and a method for supporting Web co-browsing is presented, which is interoperable across different platforms and Web browsers and provides for online annotation, of shared HTML documents, directly within the browser's windows.
207