High network latency is fatal to performance-sensitive applications. With that notion in mind, an ISV has devised middleware that uses peer-to-peer communications at the messaging layer to stamp out latency in distributed .NET applications.
RTI announced on June 9 at the SIFMA Technology Management Conference in New York that its Data Distribution Service middleware product would support the .NET Framework 2.0 by September.
The company says that a beta of Data Distribution Service, using standard gigabit Ethernet networks, achieves inter-application messaging latency of less than 100 microseconds for distributed .NET applications.
Furthermore, claims RTI, each application thread can send and receive up to 1 million messages per second. This is accomplished by using a peer-to-peer architecture, with no intermediate message brokers, daemon processes or servers.
More specifically, said to the company, the middleware uses publish-and-subscribe, or pub-sub, an asynchronous messaging paradigm, to send messages directly to subscribing applications without going through a server.
Publish-and-subscribe, said Larry O'Brien, an independent software engineering consultant and SD Times columnist, “is one of the most fundamental patterns in either the design or architecture of software. It crops up everywhere and is used at every level of a decent software program.
“It is especially relevant on the network,” he added, where the distributed application results from “not knowing all of the clients that might be interested in your data in advance. [Pub-sub] fits well with the whole concept of service orientation.”
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