Web services on embedded systems - a performance study

Abstract

This paper presents the results of a study designed to as sess the performance of Web services on embedded devices. For our investigation, we deployed Web services on SunSPOTs, representing medium-sized wireless sensor platforms, and analysed disk space, message size, response time and energy consumption. Our study quantifies the overhead of Web services and provides empirical data on whether this Web technology is a suitable approach for embedded devices.

Performance and energy evaluation of RESTful web services in Raspberry Pi

“…Real experiments were found in [27], [29], [21] and [17] and is the most used. In this approach, real devices and prototypes are used to measure response variables in a real environment using replications for non-deterministic variables.…”

“…Although it was an extensive study, it lacks RESTFul web services experiments. The study in [17] evaluated two SOAP frameworks (ksoap and ws4d) for embedded devices. They used a real device and measured the overhead using distinct metrics, such as response time and energy consumption.…”

“…However, the use of service-oriented applications in embedded devices still need to be investigated with other types of information, such as larger messages that demand more resources. This study is relevant because services use large amounts of data to create additional information in the message body, which increases the size and processing time of those messages [17]. Another important factor to investigate is the energy consumption to perform those proccess in embedded devices.…”

Emerging energy management standards and technologies — Challenges and application prospects

“…For example, a smart meter equipped to support SOAP-based OpenADR2 signals or SEP2 RESTful web services needs much more RAM, computing power and battery power compared to a meter that supports EN 13757-3 (the application layer protocol of M-Bus). Even more challenging is the use of web services over lowpower and low-bandwidth radio links that are often used for remote meter readings [20]. In many cases, protocol gateways will be required to translate between low-level specialized protocols and SOA-based energy management communications.…”

Efficient XML Interchange in factory automation systems

“…The verbose structure of XML and the high resource requirements for its processing is, in many cases, the bottleneck when applying the web service technology to the embedded systems often found on the plant floor. More detailed discussion and quantification of the performance overhead of using web services on deeply constrained networked embedded devices is provided in [4].…”