gperftools is a collection of performance analysis tools designed to help developers optimize their applications. It includes a heap profiler, CPU profiler, and a memory checker, allowing users to identify bottlenecks and memory leaks in their code. These tools are particularly useful for applications written in C++ and Python. The CPU profiler helps track where time is spent in a program, while the heap profiler analyzes memory usage. By providing detailed reports, gperftools enables developers to make informed decisions about code improvements, ultimately leading to more efficient and faster applications.