Building the modern main-frame

Modern Main-Memory Database Systems

This tutorial provides an overview of recent developments in mainmemory database systems. With growing memory sizes and memory prices dropping by a factor of 10 every 5 years, data having a “primary home” in memory is now a reality. Main-memory databases eschew many of the traditional architectural tenets of relational database systems that optimized for disk-resident data. Innovative approache...

Building Modern Distributed Systems

Ada 95 has been the first standardized language to include distribution in the core language itself. However, the set of features required by the Distributed Systems Annex of the Reference Manual is very limited and does not take in account advanced needs such as fault tolerance, code migration or persistent distributed storage. This article describes how we have extended the basic model withou...

Optimizing Main-Memory Join on Modern Hardware

ÐIn the past decade, the exponential growth in commodity CPU's speed has far outpaced advances in memory latency. A second trend is that CPU performance advances are not only brought by increased clock rate, but also by increasing parallelism inside the CPU. Current database systems have not yet adapted to these trends and show poor utilization of both CPU and memory resources on current hardwa...

Developmental Psychology: Main Problems and Modern Tendencies

the tragedy of modern man in arthur millers world

what miller wants is a theatre of heightened consciousness. he speaks of two passions in a man, the passion to "feel" and the passion "know". he belives that we can have more of the latter. he says: drama is akin to the other inventions of man in that it ought to help us know more and not merely to spend our feelings. the writing of the crucible shows us that he is trying to give more heightene...