Yesterday SAP for 10 Million Dollars, Today Java Microservices for 10 Million Rubles

Alexei will show how they implemented a complex business critical service with high requirements and a huge amount of data. What difficulties arise when there is a lot of data and little time to work with it. The speaker will share techniques that significantly speed up the design process. You will learn how you can use the profiler to speed up the algorithm by hundreds or thousands of times, how to achieve memory gains by times, and hear some simple tips that help you process tens or hundreds of millions of records and save RAM.