Linux Performance Monitoring & Analysis - Hands On !!

Linux Performance Monitoring & Tuning

Gain essential skills in Linux performance monitoring and tuning with this comprehensive course. Learn how to proactively identify and resolve performance bottlenecks on your Linux servers, ensuring optimal efficiency and responsiveness.

Monitoring Tools & Techniques:

• Process Monitoring:
  • Master the ps command for detailed process information.
  • Utilize the top command to observe real-time system resource usage.
• Resource Usage Analysis:
  • Track memory usage effectively.
  • Analyze file system usage to identify disk space issues.
• System Monitoring Packages:
  • Explore the Sysstat package and its utilities (iostat, mpstat, pidstat) for in-depth system analysis.
  • Understand the advantages of SAR (System Activity Reporter) for comprehensive performance data collection.
• Advanced Monitoring:
  • Leverage Cockpit for a web-based system monitoring interface.
  • Utilize Performance Co-pilot for proactive performance analysis and recommendations.
• Essential Commands: Become proficient with key Linux commands for performance management: top, vmstat, iostat, free, lsof, tcpdump, fuser, sysctl, dmesg.

System Tuning & Optimization:

• Systemd Timers: Schedule tasks efficiently using Systemd timers.
• Kernel Tuning:
  • Explore and modify kernel tunables for optimized performance.
  • Understand the Proc File System and its role in kernel configuration.
  • Learn to modify kernel tunables using sysctl and persistently.
  • Explore the Sysfs File System for accessing kernel module information.
• Kernel Modules: Gain insight into managing and optimizing kernel modules.
• Resource Management:
  • Limit system resources using ulimit.
  • Configure persistent ulimit rules for consistent resource control.
  • Set limits for services using cgroups.
• Process Management:
  • Understand process states ("D", "S", "T", "Z") and properties.
  • Utilize kill commands to manage processes effectively.

File System & Network Analysis:

• Linux Find Commands: Efficiently locate files and directories using find with various criteria (name, permissions, owner, group, date, size).
• Network Packet Analysis: Use tcpdump to capture and analyze network traffic, including packet statistics and failure analysis.
• Open File Monitoring: Employ lsof to list open files and identify processes using them.
• Process Resource Usage: Identify top processes consuming the most CPU and memory.

Practical Application:

• Practice Labs: Hands-on lab sessions provide practical experience with:
  • iostat command
  • mpstat command
  • pidstat command
  • SAR analysis
  • Tuning profiles
  • Resource limit management
  • lsof and fuser usage
  • tcpdump analysis
• Practical Scenarios: Address common performance issues through practical labs focusing on:
  • High CPU utilization
  • High memory utilization
• Hardware Information:
  • View hardware resources using appropriate commands.
  • Retrieve CPU information.
  • Retrieve DMI information using dmidecode.
  • Retrieve peripheral information using hwloc and lshw.

This course equips you with the knowledge and skills to effectively monitor, tune, and optimize Linux server performance, leading to improved application responsiveness, resource utilization, and overall system stability.