This page presents the benefits of the EXI format compared to XML and gzipped XML.
Tests have been run over the EXI Working Group's Measurement Test Framework, which contains 114 test documents from 21 test groups.
The following graph shows the resulting size as a percentage of the original XML document size, sorted by the EXI vs. XML compression ratio.
EXI is consistently smaller than gzipped XML regardless of document size, document structure or the availability of schema information. In some cases, EXI is over 10 times smaller than gzip. In addition, EXI works well in cases where gzip has little effect or even makes documents bigger, such as high volume streams of small messages typical of geolocation, financial exchange and sensor applications.
The processing efficiency tests were run using the EXI Working Group's framework test data and test methodology on a Windows XP machine with an Intel Core Duo T2300 / 1.66 GHz (mobile) Processor and 2.0 Gbytes of RAM.
The following graph illustrates the decoding (i.e., parsing) speed of EXIficient without EXI compression for each test case in transactions per second (TPS). So, for example, a measurement of 200% is two times faster, a measurement of 300% is three times faster, etc.
The average decoding speed of EXIficient 0.9.2 was more than 3.5 times faster than the average decoding speed of XML. To improve readibility, the graph does not show the six best cases, which ranged from 7 times faster to 50 times faster.
LastUpdate: Mar 4 2015