For research insights and development potential, we should explore computer architectures designed to scale indefinitely. Given physical limits, we argue an indefinitely scalable computer should or must (1) reveal to programmers its component spatial relationships, (2) forego unique addresses, and (3) operate asynchronously. Further, such a machine and its programming must be inherently robust ...

The Linux Scalability Project is adapting Linux for use in enterprise-scale networking environments. We focus on kernel algorithms and data structures that scale poorly when presented with thousands or tens of thousands of simultaneous service requests. For example, we uncovered a “thundering herd” problem in the accept system call. A few dozen lines of code corrects this behavior to awaken onl...

Sc alability is r ecognise d as a primary factor to b e consider ed in the design of distributed systems. The scalability of object oriented middleware CORBA becomes a major concern as it has emerged as a standard archite ctur e for distribute d obje ct computing.In this paper, a systematic scalability analysis of the basic components of CORBA speci c ationis attempted. F rom this analysis, Por...

Blockchain is an emerging technology for decentralized and transactional data sharing across a large network of untrusted participants. It enables new forms of distributed software architectures, where components can find agreements on their shared states without trusting a central integration point or any particular participating components. Considering the block- chain as a software connector...

Blockchain is an emerging technology for decentralized and transactional data sharing across a large network of untrusted participants. It enables new forms of distributed software architectures, where components can find agreements on their shared states without trusting a central integration point or any particular participating components. Considering the block- chain as a software connector...

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Many Internet servers these days have to handle not just heavy request loads, but also increasingly face large numbers of concurrent connections. In this paper, we discuss some of the event-dispatch mechanisms used by Internet servers to handle the network I/O generated by these request loads. We focus on the mechanisms supported by the Linux kernel, and measure their performance in terms of th...

RAID systems (Redundant Arrays of Inexpensive Disks) have dominated backend storage systems for more than two decades and have grown continuously in size and complexity. Currently they face unprecedented challenges from data intensive applications such as image processing, transaction processing and data warehousing. As the size of RAID systems increases, designers are faced with both performan...

PARSEC is a popular benchmark suite designed to facilitate the study of CMPs. It is composed of 13 parallel applications, each with an input set intended for native execution, as well as three reduced-size simulation input sets. Each benchmark also demarcates a Region of Interest (ROI) that indicates the parallel code in the application. The PARSEC developers state that users should model only ...

The concept of scalability in parallel systems is a simple one: given a reasonable performance on a sample problem, a problem of increased workload can be solved with reasonable performance given a commensurate increase in computational resources. This definition does not aaord the analytical precision that is required of any scientiic classiication system since the terms of this deenition are ...