[Udemy, Shikhar Verma] Linux Performance Monitoring & Analysis - Hands On !! [3/2025, ENG]

Linux Performance Monitoring & Tuning
Introduction about Performance monitoring in Linux

1. Monitoring Processes using ps command
   
2. Monitoring Processes using top command
   
3. Monitoring memory usage
   
4. Monitoring File System Usage
   
5. GNOME System Monitor
   
6. Practice Lab Session
   
7. Overview Sysstat Package Utilities
   
8. Lab - Iostat command
   
9. Lab - mpstat command
   
10. Lab - pidstat command
    
11. Overview SAR
    
12. Advantages of SAR
    
13. Lab - SAR
    
14. Scheduling tasks with Systemd timer
    
15. Monitoring Systems using Cockpit
    
16. Monitoring Systems using performance co-pilot

Familiar with various Commands to manage performance issues in Linux Servers

1. top
   
2. vmstat
   
3. iostat
   
4. free
   
5. lsof
   
6. tcpdump- Network Packet Analyzer

Following are the Linux performance statistics using sar command.

1. Collective CPU usage
   
2. Individual CPU statistics
   
3. Memory used and available
   
4. Swap space used and available
   
5. Overall I/O activities of the system
   
6. Individual device I/O activities
   
7. Run queue and load average data
   
8. Network statistics
   
9. Report sar data from a specific time

Viewing Hardware Resources

1. Viewing kernel messages using dmesg command
   
2. Retrieving CPU Information
   
3. Retrieving DMI Information - dmidecode
   
4. Retrieving peripheral Information
   
5. hwloc & lshw command

Configuring Kernel Tunables

1. Proc File System
   
2. Kernel Tunables
   
3. Modifying Kernel Tunables
   
4. Modify Kernel Tunables Using Sysctl Command
   
5. Modify Kernel Tunables Persistently
   
6. Sysfs File System
   
7. About Kernel Modules
   
8. Practice Lab Session
   
9. Overview about tuning profiles
   
10. Managing profiles from the command line
    
11. Lab Session - Tuning profile

Managing Resource Limits

1. Limiting System Resources with ulimit
   
2. Configuring Persistent ulimit Rules
   
3. Practice Lab Session
   
4. Setting Limits for Services
   
5. Lab - Configure the service with a cgroup

Process Management

1. Understanding ps commands with custom properties & Nice values etc
   
2. Different stats of a process like "D", "S", "T", "Z" etc
   
3. Kill commands to terminate the process
   
4. Lab

Linux Find Commands

1. Basic find commands for finding files with names
   
2. Find files based on their permissions
   
3. Search files based on owners & groups
   
4. Find files and directories based on date & time
   
5. Find files and directories based on size

Top Running Processes

1. Command to list out top processes consuming highest memory utilization
   
2. Command to list out top processes consuming highest cpu utilization

Lab on lsof - List open files & fuser

1. 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

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

Practice Lab Sessions

1. Practical Lab Session - High CPU Utilization
   
2. Practical Lab Session - High Memory Utilization

General
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