CPU_OR_S - Linux
Overview
CPU_OR_S is a command-line tool used to monitor and control CPU utilization on Linux systems. It allows administrators to view real-time CPU usage, set CPU affinity, and optimize CPU performance.
Syntax
CPU_OR_S [options] [command]
Options/Flags
- -c, –cpu : Specify the CPU or range of CPUs to use.
- -i, –interval : Set the update interval in seconds (default: 1).
- -a, –affinity : Lock the process to the specified CPUs.
- -m, –max : Set the maximum CPU utilization limit (percent).
- -p, –process : Monitor or control a specific process (by PID or name).
- -h, –help : Display help information.
Examples
Display CPU Usage
CPU_OR_S
Limit CPU Utilization
CPU_OR_S -m 50
Set CPU Affinity for a Process
CPU_OR_S -a 2,4 -p python
Monitor Specific Process
CPU_OR_S -p firefox
Common Issues
Insufficient Privileges
Error: Operation not permitted
Solution: Run CPU_OR_S as root or with sudo.
CPU Affinity Not Set
Error: Unable to set CPU affinity
Solution: Check that the specified CPUs are online and available.
Integration
CPU_OR_S can be combined with other Linux commands, such as top, ps, and grep, for advanced monitoring and optimization tasks. For instance:
top -u | CPU_OR_S -m 80
Related Commands
- top : Display real-time system and process information.
- ps : Display running processes.
- sar : Collect and report system utilization data.
- stress : Generate artificial CPU load for testing purposes.