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diff --git a/template/news/2022-06.html.j2 b/template/news/2022-06.html.j2 new file mode 100644 index 00000000..9491a2f2 --- /dev/null +++ b/template/news/2022-06.html.j2 @@ -0,0 +1,54 @@ +{% extends "common/news.j2" %} {% block body_content %} + +<h1>2022-6: "GNU Taler Scalability: Measuring and Improving the Performance of GNU Taler on Grid’5000"</h1> + +<h2>Background</h2> +<p> +Anonymity loves company. Hence, to provide the best +possible anonymity to GNU Taler users, the scalability of +individual installations of a Taler payment service matters. +While our design scales nicely on paper, +<a href="https://www.ngi.eu/ngi-projects/fed4fire/">NGI Fed4Fire+</a> +enabled us to evaluate the transaction rates that could be achieved +with the actual implementation. Experiments were conducted by Marco Boss for +his Bachelor's thesis at the <a href="https://www.bfh.ch/">Bern +University of Applied Sciences</a> to assess bottlenecks and suggest +avenues for further improvement. +</p> +<h2>Introduction video</h2> +<p> + <video id="video" poster="/images/logo-2021.svg" autobuffer="" height="360" width="640" controls="controls"> + <source src="/videos/mboss2022video.mp4" type="video/mp4" \> + </video> +</p> +<h2>Abstract</h2> +<p> +This thesis is on the GNU Taler scalability experiments conducted +on <a href="https://www.grid5000.fr/">Grid’5000</a> in the first +half of 2022, which was preceded by preparations carried out in the second half of 2021 +supported by the Next Generation Internet initiative’s +<a href="https://www.ngi.eu/ngi-projects/fed4fire/">NGI Fed4Fire+</a> program. +<br> +The primary goal of this study was to evaluate the scalability of GNU Taler in a real-world +scenario. That is, moving away from the loopback system to a distributed network and identifying +improvement opportunities therein to analyze and improve performance. While the +basic framework was already known from the previous study, this work focuses on extending +the framework and making further improvements to GNU Taler. This includes, among +other things, the horizontal distribution of the PostgreSQL database. +<br> +We identified and fixed several bottlenecks in the GNU Taler software. We parallelized the +execution of the cryptographic frontend, leaving the PostgreSQL database as the natural bottleneck. +Here, we optimized queries and modified the schema to enable table partitioning. +The scalability demonstrated in our experiments shows that Taler is very capable of processing +enough transactions per second to be considered an acceptable payment system. +Throughout this work, we were able to increase the performance of Taler by a factor of 95, +from about 300 to 28.5k transactions per second, showing that Central Bank Digital Currencies +based on Taler would require only a few exchanges per continent. +</p> +<h2>Download links</h2> +<ul> + <li><a href="/presentations/boss2022poster.pdf">Poster PDF (English)</a></li> + <li><a href="/papers/boss2022thesis.pdf">Thesis PDF (English)</a></li> +</ul> + +{% endblock body_content %} |