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Механика. Динамика Механика. Динамика


A spectral method approach Algorithmic performance of large-scale distributed networks.

Автор:   Christos G.
мягкая обложка
104 страниц
2010 год
Издательство:   Книга по Требованию
2005 руб
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Описание:In such networks it is critical to characterize network performance as the size of the network scales. These graph-theoretic notions are directly related to the performance of basic communication tasks performed on the graph of the network, including routing congestion, searching, and crawling. The focus of this work is to relate basic network performance metrics to structural characteristics of underlying network topologies, and to develop protocols that reinforce and exploit desired structural characteristics. They can be also used to quantify and measure the presence of groups of nodes that connect preferentially with each other, which is also referred as clustering. We have used the notions of conductance and spectral analysis to study the structural characteristics of complex communication networks. Complex networks like the Internet, peer-to-peer systems, and emerging sensor and ad-hoc networks are large distributed decentralized communication systems arising repeatedly in today's technology.

Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка Orthomol Immun Junior Сила иммунитета на страже Вашего ребенка

2990 руб
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Embedded Linux Primer: A Practical, Real-World Approach

The real-time patch adds CONFIG_PREEMPT_RCU, which improves latency by making certain RCU sections preemptable. 17.3.2. O(1) Scheduler The O(1) scheduler has been around since the days of Linux 2.5. It is mentioned here because it is a critical component of a real-time solution. The O(1) scheduler is a significant improvement over the previous Linux scheduler. It scales better for systems with many processes and helps produce lower overall latency. In case you are wondering, O(1) is a mathematical designation for a system of the first order. In this context, it means that the time it takes to make a scheduling decision is not dependent on the number of processes on a given runqueue. The old Linux scheduler did not have this characteristic, and its performance degraded with the number of processes.[121] 17.3.3. Creating a Real-Time Process You can designate a process as real time by setting a process attribute that the scheduler uses as part of its scheduling algorithm. Listing 17-4 shows the general method. Listing 17-4 ...»

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