FOREX TECHNOLOGY
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“Tis later latency reduction is typically achieved through the provision of feature-rich functionality that spans the widest possible range of API’s, user devices and delivery channels available,” he adds. Tis has been a key consideration in the design of the my-Channels Nirvana unified messaging solution which delivers a single, low latency platform to fulfil an organisation’s external middleware needs and has an internationally deployed user base in the financial services community that includes a number of the world’s largest FX dealers.
Optimising real-time FX data
Te need to reduce latency and avoid network overload with resulting loss of FX data is paramount. Optimising the data and the way it is delivered is a way of achieving this. “Te support for real streaming eliminates the round-trip latency of the request/ response paradigm,” says Alinone. “Adaptive throttling continuously tunes the streaming bandwidth based on the actual available bandwidth, thereby not saturating the network links and avoiding data ageing.”
Alinone explains: “Dynamic conflation, batching, and compression algorithms take care of sending the smallest possible amount of data without losing information.” Tese and several other algorithms provided by the vendor are completely automatic and
work transparently across all the supported client- side technologies.” (i.e. for all desktop, mobile web browsers plus any kind of native apps).
Tis, he claims, differentiates vendors like Lightstreamer from what he calls the “dumb pipe” approach, where the streaming server moves data in an unoptimised way, so resulting in a higher latency and network overloading.
Sumeet Puri, Director, Systems Engineering, Asia- Pacific, Solace Systems, a content networking company in Ontario, Canada, that manufactures and sells middleware appliances, says: “A modern FX architecture has lots of moving pieces: price and order gateways, aggregators, algorithms/market models, and gateways that push data to the street. Tese components need to share data with a variety of latency characteristics.”
Such characteristics cover ultra low latency to algorithms, less onerous speed requirements for human traders and qualities of service (i.e. persistent/ non-persistent delivery).
He adds: “Hardware-based messaging appliances meet this demand with a combination of performance and robustness that are only possible when routing messages just like IP routers and switches route raw packets. Tese applications frequently need to share data across Wide Area Networks (WANs) between datacenters.” And, he suggests that a well-designed hardware platform like Solace’s “can deal gracefully with WAN links and optimise bandwidth thanks to parallel streaming, intelligent routing protocols, and compression in hardware.”
Rich Internet Applications
Te delivery of market data is undergoing a fundamental shift with the introduction of Rich Internet Applications (RIA) that give users a sophisticated real-time user experience within their web browser - without the installation of any client- side software or plugins.
Alessandro Alinone “Adaptive throttling continuously tunes the
streaming bandwidth based on the actual available bandwidth, thereby not saturating the network links and avoiding data ageing.”
126 | october 2011 e-FOREX
Puri says: “Mobile distribution adds the notion of dedicated smartphone/tablet apps, but the underlying delivery technologies and infrastructure are the same.
In fact, even on LAN-connected desktops, Puri points out that “thick clients and browser applets are giving way to browser-delivered RIAs powered by technologies like AJAX and COMET.”
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