Operation and MaintenanceLinux Operation and MaintenanceHow to monitor resource usage in Debian system
This article introduces several commonly used methods to help you effectively monitor system resources on the Debian system.
Commonly used commands and tools:
topcommand: display process information in real time, including CPU and memory usage. Press "Shift M" to sort by memory, and "Shift P" to sort by CPU.htopcommand: (Requires installation:sudo apt-get install htop) Interactive process viewer, more intuitive thantop.vmstatcommand: Displays virtual memory, disk, CPU and process activity information. Press the "d" key to view disk I/O, and press the "p" key to view CPU statistics.iostatcommand: (Requires installation:sudo apt-get install sysstat) Displays disk I/O statistics, including read and write speed.netstatcommand: Displays network connection, routing table and network interface information.freecommand: Displays memory usage (total memory, used, free). Usefree -mto display in MB.dfcommand: Displays disk space usage (total space, used, available). Usedf -hto display in human-readable format.uptimecommand: Displays system running time and average load.acct/psaccttool: used to monitor and record user activities, assist system administrators in user activity tracking, resource usage analysis and security audits.Bashtop: (Required to be installed) Terminal-based resource monitoring tool that intuitively displays CPU, memory, process and bandwidth statistics.
Zeek (formerly Bro): Powerful open source network security monitor, providing real-time network operation insights, assisting in detecting and preventing security incidents.
SNMP: Simple network management protocol, used to monitor server and network device information.
Through the above tools and commands, you can comprehensively monitor the resource usage of the Debian system to ensure stable operation and efficient performance of the system.
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