This document provides some performances analysis of running the end user portal in Pega 8.5.1, Pega 8.6 and Pega 8.8
Constellation UI rendering is 2 to 3 times faster than Cosmos Theme.
Constellation UI has 5 times less transferred resources (Javascript and CSS) than Cosmos Theme and as such is twice faster in parsing the JS and 6 times faster rendering the UI. The page DOM size is also more than 4 times smaller than Cosmos Theme.
By using less Javascript and CSS, having a smaller payload from the server, and a lightweight DOM rendering, the Constellation UI rendering is 2 to 3 times faster on most of the use cases.
The only use case where the load time is similar between Cosmos Theme and Constellation is when creating a case in a modal dialog – because the size of the payload is small compared to other pages, the page load time between the 2 implementations is almost the same. Constellation total load time is slightly higher due to the animation of the modal dialog using opacity.
The attachment documents shows the page load time for different use cases in 8.5.1, 8.6 and 8.8
@maheshk7121Theme Cosmos and UI-Kit are using the same architecture to render the UI - the two rulesets provides an additional layer of sections, JS and CSS to deliver a different look and feel but they are using the same rendering engine (referred to as ‘Traditional UI’) and as such the performance are almost identical - On some use cases, Theme Cosmos will be faster to render than ui-kit because it uses an Ajax container and instead of reloading the whole page and switch from Review to Perform harness, only the assignment will be rendered.
While UI-Kit and Theme Cosmos have roughly the same performance, Constellation is faster and recommended. This article presents a detailed analysis of the performance improvements.
@RichardMarsot Thanks for your response, Richard. I have one more question. While reviewing PDN documents about Cosmos advantages, I came across a mention that Cosmos uses AI for collaboration tools. Could you please explain how Pega leverages AI in this context? Is it possible to generate reports from collaboration tools using AI?