Memory and response time increase on the graphs with constant RPS — what does this mean?

An increase in memory and response time at a constant RPS (Requests Per Second) usually indicates resource management issues:

• Memory leaks: the application gradually consumes more memory, leading to slowdown due to garbage collection.
• Accumulation of unreleased resources: such as open connections, unclosed files, or objects.
• Queue buildup of tasks: if request processing cannot keep up with incoming requests, response time increases.

This means that the system cannot handle the load at the current level due to internal problems, and profiling memory, analyzing logs, checking thread and resource management are necessary. It is important to find and fix leaks, optimize request processing, or scale the system.