By carrying out performance and load tests you can ensure the speed, stability and reliability of your applications and services. Your system administrators should not have to panic if you rollout a new software version.
Performance issues of distributed systems often occur above a certain number of user and are therefore impossible to find without performing load tests. With the right tools, you can identify these issues in your test environment independently from production and fix them before going live.
Through a sizing test combined with a performance analysis you are able to choose the right dimensions for your hardware resources and ensure that the load is equally distributed among your infrastructures. You may also want to check the dynamic scaling in your cloud environments, where costs can skyrocket easily.