Linux System Engineer: Kernel Tuning and Remote Logging

Study to pass the RHCE exam—the benchmark certification for Red Hat Enterprise Linux. This course covers Linux kernel tuning for performance optimization, and remote logging.

Introduction

• Performance with Linux kernel tuning
• What you should know
• OS installation
• Lab setup
• Install guest additions

1. Performance Monitoring Tools

• Introduction to performance testing
• Monitor processes using ps
• Monitor processes in real time
• Monitor processes using GNOME System Monitor
• Use Performance Co-pilot (PCP) to gather statistics
• Use turbostat to gather CPU statistics
• Use SS to gather network statistics
• Other CLI performance monitoring tools

2. Tune the Kernel with tuned

• Introduction to tuned
• Install additional tuned profiles
• Create custom tuned profiles
• Use PowerTOP suggestions in tuned
• Boot-time kernel parameters

3. Manually Tune the Kernel

• Understand Linux kernel versions
• Tune live kernel parameters manually using sysctl
• Use Tuna to tune the kernel

4. Kernel Module Tuning

• Linux kernel directory structure
• Manage kernel modules
• Displaying information about kernel modules
• Installing kernel modules from disk

5. Logging System Messages Remotely

• Understand Enterprise 7 logging
• rsyslog filters
• rsyslog actions
• Log to a remote rsyslog server

Conclusion

• Next steps