Linux Performance Monitoring & Analysis – Hands On !!

Course Contents

Linux Performance Monitoring & Tuning

Introduction about Performance monitoring in Linux

• Monitoring Processes using ps command
• Monitoring Processes using top command
• The monitoring memory usage
• Monitoring File System Usage
• GNOME System Monitor
• Practice Lab Session
• Overview Sysstat Package Utilities
• Lab – Iostat command
• The lab – mpstat command
• Lab – pidstat command
• Overview SAR
• Advantages of SAR
• Lab – SAR
• Scheduling tasks with Systemd timer
• Monitoring Systems using Cockpit
• Monitoring Systems using performance co-pilot

Familiar with various Commands to manage performance issues in Linux Servers

• top
• vmstat
• iostat
• free
• lsof
• tcpdump- Network Packet Analyzer

Following are the Linux performance statistics using sar command.

• Collective CPU usage
• Individual CPU statistics
• Memory used and available
• Swap space used and available
• Overall I/O activities of the system
• Individual device I/O activities
• Run queue and load average data
• Network statistics
• Report sar data from a specific time

Viewing Hardware Resources

• Viewing kernel messages using dmesg command
• Retrieving CPU Information
• The retrieving DMI Information – dmidecode
• Retrieving peripheral Information
• hwloc & lshw command

Configuring Kernel Tunables

• Proc File System
• Kernel Tunables
• Modifying Kernel Tunables
• Modify Kernel Tunables Using Sysctl Command
• Modify Kernel Tunables Persistently
• Sysfs File System
• About Kernel Modules
• Practice Lab Session
• Overview about tuning profiles
• Managing profiles from the command line
• Lab Session – Tuning profile

Managing Resource Limits

• Limiting System Resources with ulimit
• Configuring Persistent ulimit Rules
• Practice Lab Session
• Setting Limits for Services
• Lab – Configure the service with a cgroup

Process Management

• Understanding ps commands with custom properties & Nice values etc
• Different stats of a process like “D”, “S”, “T”, “Z” etc
• Kill commands to terminate the process
• Lab

Linux Find Commands

• Basic find commands for finding files with names
• Find files based on their permissions
• Search files based on owners & groups
• Find files and directories based on date & time
• Find files and directories based on size

Top Running Processes

• Command to list out top processes consuming highest memory utilization
• Command to list out top processes consuming highest cpu utilization

Lab on lsof – List open files & fuser

• lsof command used in many Linux/Unix like system that is used to display list of all the open files and the processes.

Lab on tcpdump- Network Packet Analyzer   

• For example: number of packets received (transmitted) through the network card, statistics of packet failure etc

Practice Lab Sessions   

• Practical Lab Session – High CPU Utilization
• Practical Lab Session – High Memory Utilization