The best practice of system management and monitoring with PSTUIL Library of Python

Use Python's `PSUTIL` Library to perform the best practice of system management and monitoring `PSUTIL` (also known as Python System and Process Utilities) is a cross -platform Python class library that is used to obtain information, monitor system resources and processes when running the system, and manages.It provides a set of simple and powerful functions that can help you monitor and control the operating system process, system resources and network connections that are running. In this article, we will introduce the best practice of how to use the `PSUTIL` Library for system management and monitoring. Install and import the `PSUTIL` Library Before the beginning, we first need to install the `PSUTIL` Library.You can use the `pip` command to install it: pip install psutil After the installation is completed, we can introduce the following code into the Python script to introduce the `PSUTIL` Library: python import psutil 1. Get system information The `PSUTIL` Library provides a set of functions that allows us to obtain various information about the system.Here are some practical function examples: -Cou obtaining CPU utilization: python cpu_percent = psutil.cpu_percent(interval=1) Print (F "CPU utilization: {cpu_percent}%") -Colin the use of memory: python virtual_memory = psutil.virtual_memory() Print (F "total memory: {virtual_memory.total}") Print (F "has used memory: {virtual_memory.used}") Print (f "idle memory: {virtual_memory.available}") -Colid the disk usage: python disk_usage = psutil.disk_usage('/') Print (F "Total Disk Size: {Disk_usage.total}") Print (F "has used disk size: {disk_usage.used}") Print (f "disk remaining space: {disk_usage.free}") -Cap to get network connection information: python net_connections = psutil.net_connections() for conn in net_connections: Print (f "local address: {conn.laddr}") Print (f "remote address: {conn.raddr}") Print (f "state: {conn.status}") 2. Process management The `PSUTIL` Library also provides a set of powerful functions to manage the operating system process.Here are some practical process management examples: -Wet all the processes running currently running: python processes = psutil.process_iter(['pid', 'name']) for process in processes: Print (f "process ID: {process.pid}") Print (f "process name: {process.name ()}") -Chill the process according to the process ID: python process = psutil.Process(pid) process.kill() -CPU and memory usage of the process: python process = psutil.Process(pid) cpu_percent = process.cpu_percent(interval=1) memory_info = process.memory_info() Print (F "CPU utilization: {cpu_percent}%") Print (F "memory usage: {memories_info.rss}") 3. System monitoring and alarm `PSUTIL` Library also allows us to create system monitoring and alarm tools.The following is an example that displays how to send alert when the system CPU utilization exceeds the threshold: python import psutil import smtplib from email.message import EmailMessage Threshold = 80 # Setting threshold is 80% def send_alert(): msg = EmailMessage() msg.set_content ("System CPU utilization rate exceeds 80%!") msg ['Subject'] = 'Alert: The system load is too high' msg['From'] = 'sender@example.com' msg['To'] = 'receiver@example.com' Server = smtplib.smtp ('smtp.example.com', 587) # Configure the SMTP server server.starttls() Server. Login ('SSEDER@example.com ',' Password ') # s server.send_message(msg) server.quit() cpu_percent = psutil.cpu_percent(interval=1) if cpu_percent > threshold: send_alert() In this example, we use the CPU utilization rate of the `PSUTIL` Library to monitor the system, and send an alert via email.You need to configure it appropriately according to your own needs so that you can successfully send an alert. In summary, the `PSUTIL` Library provides a set of powerful functions that can help us perform system management and monitoring.By using these functions, we can easily obtain system information, management processes, and set up system monitoring and alarm tools.According to actual needs, we can further customize and expand these examples.I hope this article can help you use the `PSUTIL` Library for system management and monitoring.