How to debug the performance of PHP functions with Tideways?

Tideways is a PHP profiling tool that helps you identify performance bottlenecks. To use Tideways to debug the performance of PHP functions, you need to: install Tideways, including Composer installation and configuration php.ini file; enable Tideways configuration in the code and set up function tracing; run the application and call the target function; log in to the Tideways web interface and analyze Flame graph to identify performance bottlenecks. Tideways also provides additional features such as response time distribution graphs and trace data to gain insights into the performance of your PHP applications.

How to use Tideways to debug the performance of PHP functions

Introduction

Tideways is A powerful PHP analysis tool that helps you identify performance bottlenecks in your application. It gives you insight into your code execution and determines which functions are taking the most time.

Installation

To install Tideways:

1. Use Composer: composer require tideways/tideways
2. Download Tideways Agent and add the following to your php.ini file:

extension=tideways.so
tideways.agent.license_id=YOUR_LICENSE_ID

Start debugging

1. In your code Set up the Tideways configuration:

\Tideways\Profiler::enable('my-app');

2. Run your application and perform actions that trigger the functions to be profiled.
3. Visit [Tideways Web Interface](https://ui.tideways.com/) and log in using your Tideways License ID.

Practical case

Suppose you have a function named foo() and you suspect its performance is poor:

function foo()
{
    // …
}

1. Enable tracing of the foo() function in the Tideways configuration:

\Tideways\Profiler::enabledForFunction('foo');

2. Run your application and call foo() function.
3. In the Tideways web interface, open the Flame Graph tab and find the foo() function.
4. Analyze the flame graph to determine the section of code in the foo() function that takes the most time.

Deeper Look

Tideways provides a variety of additional features to help you debug the performance of your PHP functions, including:

• Response time distribution graph: Shows the distribution of different response times of the application.
• Trace data: Provides detailed data about function execution, including execution time, memory usage, and stack trace.
• External request tracking: Analyze the interaction between the application and external services.

By leveraging these features of Tideways, you can gain a complete view of your PHP application's performance and easily identify performance bottlenecks. This allows you to optimize your code and improve the overall responsiveness of your application.

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