How can application performance analysis be conducted to identify bottlenecks?

Profiling and monitoring are typically used for analyzing application performance and identifying bottlenecks. Main steps:

1. CPU and memory profiling — using tools (e.g., VisualVM, YourKit, JProfiler) to measure which methods consume the most time and memory.

2. Logging and tracing — adding logs with timestamps to evaluate the execution time of key operations.

3. Metrics monitoring — collecting data on CPU load, memory usage, request count, response time.

4. Database analysis — checking slow queries, indexes, locks.

5. Load testing — simulating real load to identify issues during scaling.

Example of using VisualVM:

• Run the application with JMX enabled.
• Connect to the process via VisualVM.
• Start CPU profiling.
• Analyze hot methods and optimize them.

Thus, a systematic approach using profilers and monitoring helps identify and eliminate performance bottlenecks.