How to Optimize GeckoDriver Memory Usage in Selenium Without Sacrificing Best Practices?

Selenium: Best Practices for Gecodriver Memory Optimization

Question:

How can I prevent the GeckoDriver process from consuming excessive memory while running Selenium tests without using driver.quit()?

Answer:

Best Practice:

It is not advisable to avoid calling driver.quit() after each test run for memory optimization. Selenium best practices recommend invoking quit() within the teardown method to completely end the browsing session and kill the WebDriver instance.

Solution for Dangling WebDriver Instances:

However, if you need to kill dangling WebDriver instances (e.g., GeckoDriver.exe processes), you can use the following methods:

Java (Windows):

import java.io.IOException;

public class Kill_GeckoDriver {
    public static void main(String[] args) throws Exception {
        Runtime.getRuntime().exec("taskkill /F /IM geckodriver.exe /T");
    }
}

Python (Windows):

import os
os.system("taskkill /f /im geckodriver.exe /T")

Python (Cross Platform):

import os
import psutil

PROCNAME = "geckodriver"
for proc in psutil.process_iter():
    if proc.name() == PROCNAME:
        proc.kill()

By utilizing these methods, you can terminate unwanted GeckoDriver processes without affecting your tests or closing the browser window. Remember that following best practices for memory management, including invoking quit(), is crucial for optimal Selenium test execution.

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