The performance optimization skills of the Python program are used to use the PStuil class library

The performance optimization skills of the Python program are used to use the PStuil class library Overview: Performance optimization is an important consideration when developing and optimizing the Python program.PSTUIL is a powerful Python library that helps developers monitor and manage the process of running, thereby achieving performance optimization.This article will introduce several techniques to optimize Python program performance optimization using the PStuil class library, and provide example code and related configuration description. 1. Use PSTUIL to obtain system resource information: Through PStuil, the system's CPU, memory and disk use can be obtained. Developers can judge the performance bottleneck of the program based on this information and then optimize the program.The following is an example code for obtaining the system CPU utilization rate: import psutil cpu_percent = psutil.cpu_percent(interval=1) Print ("CPU utilization:", CPU_percent) 2. Use PSTUIL to monitor the Python program running status: Using PSTUIL can monitor the running status of the Python program, such as the use of CPU and memory, the ID and status of the process.Below is a sample code, monitor and print the memory usage of the Python program: import psutil process = psutil.Process() memory_info = process.memory_info() Print ("Python program memory usage:", memory_info.rss) 3. Use PStuil to manage sub -processes: In Python, developers can use the SubProcess module to create and manage sub -processes.PSTUIL extended subprocess, providing more convenient sub -process management functions, such as starting, stopping, finding, etc.Below is a sample code that uses PSTUIL to start a sub -process and find its ID: import psutil process = psutil.Popen(["python", "script.py"]) Print ("Substitute ID:", Process.pid) 4. Use PSTUIL to kill the process: In the process of performance optimization, the process of running may need to be terminated.Use PSTUIL to easily find and terminate the specified process.Below is a sample code that kills the process with PSTUIL according to the process name: import psutil processes = psutil.process_iter(['pid', 'name']) for proc in processes: if proc.info['name'] == 'script.py': proc.kill() Related configuration description: Before using PStuil, you need to install this type of library.You can install it through the PIP command, as shown below: bash pip install psutil After the installation is completed, you can import the PSTUIL module and start using the function of the library. in conclusion: Using the PStuil class library, developers can easily achieve the performance optimization of the Python program.Through the operation of system resource information, monitoring procedures, management sub -processes, and termination processes, developers can better understand the performance bottleneck of the program and optimize them accordingly.