DataSnap analysis based on Speed & Stability tests – XE4 to XE7

At this point, I suppose you may have read those two (part 1 and part 2) posts about DataSnap.

I have received many requests to redo the tests on new versions of Delphi. I think many are wondering if DataSnap has evolved over the past few years. Unfortunately, I no longer have the environment and the time to do it.

Fortunately, another Brazilian, Roberio Praciano decided to continue the work and redo the tests in a new environment with new versions of Delphi . Also using some new technologies that have emerged over this time.

Obviously we should not compare his results directly to mine, because the test environment is different.

You can check the results in the Roberio article here. The article is in PT-Br, so, probably you will have to use google translator (Not ideal, but it should be possible to analyze the results by the graphs).

SOAP and REST – Using GZip with Delphi client

I did some testing with delphi clients and a Java server. We are deciding between SOAP and REST. I’ve implemented client applications in Delphi using GZip. It is a very simple implementation and it brings a great result. The larger the volume of data, greater the difference using GZip compression. The bandwidth is also a factor that influences a lot.  Let’s see the implementations.

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DataSnap analysis based on Speed & Stability tests – Part 2

Many thanks to all those who participated in the discussion in the previous post. All comments, criticisms and compliments are welcome. This is what motivates me to keep writing this blog.

The repercussion of the previous post was much bigger than I expected. The Embarcadero team corrected some of the DataSnap problems and therefore I decided to redo these tests and create this new post.

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DataSnap analysis based on Speed & Stability tests


It’s not difficult to read and listen about the wonders of Embarcadero DataSnap technology around the world. I attended the Delphi Conference 2011 and 2012 in Sao Paulo, Brazil, after the release of versions of Delphi XE2 and XE3, and the words “performance” and “stability” are not spared when the subject is DataSnap. Apparently a perfect solution for companies that have invested their lives in Delphi and now need to reinvent themselves and offer web and mobile services. But does DataSnap really work on critical conditions?

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Finally I took the time to write this blog. My objective is to share experiences about technology and especially software development.

I am relatively new in this business (software development). I started working with software on July 2007 as a trainee at Sysmo. Although short, this period has been based on a lot of research and professional growth. Currently I coordinate the technology team, which is responsible for the technological structure of Sysmo systems. In this position, especially in the last year, I have had many experiences that I would like to share and that’s what motivates this blog.

My knowledge and experience are based on Pascal / Delphi language, but as time passes I’m even more motivated to study new programming languages and paradigms to keep evolving. For now Delphi is the tool / language that I use professionally and therefore I keep studying and improving it.

Besides the challenge of writing this blog, I’m now assuming the challenge of writing in English. I am Brazilian and don’t completely dominate this idiom but I’ll try to write as best as I can. For a better text revision, I’ll have some help from my brother Mateus Schneiders and my friend Cesar Arnhold.