Scout APM helps PHP developers pinpoint N+1 queries, memory leaks & more so you can troubleshoot fast & get back to coding faster. I did a very quick performance test because I wanted to know the impact of PHP 8.1 on my real-life projects. These benchmarks were taken on my local machine, and only meant to measure the relative difference between PHP 8.0 and 8.1. I benchmarked a page that showed lots of data, with lots of classes loaded, as I expected that https://stitcher.io/blog/new-in-php-81#performance-improvements-pr would have the largest performance impact. The results seem to be in line what what Dmitry originally reported when he added this feature: a 5-8% performance increase.