ExProf Documentation
Introduction[edit]
ExProf is a powerful profiling tool for Elixir that provides detailed information about the performance of your code. With ExProf, you can measure the execution time of function calls, identify hotspots in your application, and optimize your code for better performance.
Installation[edit]
To start using ExProf, you need to add it as a dependency to your Elixir project. Open your `mix.exs` file and add the following line to the `deps` function:
``` {:exprof, "~> 0.5"} ```
Then run the following command in your project's root directory to fetch the dependency:
``` mix deps.get ```
Usage[edit]
ExProf provides a simple and intuitive API to profile your code. Here are some common use cases:
Starting and Stopping Profiling[edit]
```elixir ExProf.start()
- Code to be profiled
ExProf.stop() ```
Measuring the Execution Time of Function Calls[edit]
```elixir {:ok, result} = ExProf.profile(fn -> your_function_here() end) ```
Custom Profiling Blocks[edit]
```elixir ExProf.profile_block("block_name", fn -> your_code_here() end) ```
Analyzing the Profiling Results[edit]
To analyze the profiling results, you can use the `ExProf.report/0` function. It returns a formatted report containing information about the function calls, execution time, and memory usage.
Profiling Configuration[edit]
ExProf allows you to configure various aspects of the profiling process, such as the maximum number of entries in the call stack, the exclusion of certain modules or functions from profiling, and more. Visit the ExProf documentation for a comprehensive list of available configuration options.
Best Practices[edit]
When using ExProf, keep the following best practices in mind:
- Profile specific sections of your code rather than the entire application to reduce overhead. - Take multiple measurements to get accurate performance data. - Use the results to identify bottlenecks and optimize the code accordingly. - Combine ExProf with other profiling tools to get a complete picture of your application's performance.
Conclusion[edit]
ExProf is a valuable tool for profiling Elixir code and optimizing performance. By measuring the execution time of your functions and analyzing the profiling results, you can identify and address performance bottlenecks in your application. Start using ExProf today and take your Elixir programming to the next level!