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Linux Performance Monitoring & Analysis – Hands On !!

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Description

Course Contents

Linux Performance Monitoring & Tuning

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Introduction about Performance monitoring in Linux

  • Monitoring Processes using ps command
  • Monitoring Processes using top command
  • Monitoring memory usage
  • Monitoring File System Usage
  • GNOME System Monitor
  • Practice Lab Session
  • Overview Sysstat Package Utilities
  • Lab – Iostat command
  • 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
  • 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

Who this course is for:

  • Anyone can join this course module who is willing to get some knowledge and understanding on performance monitoring & tuning in Linux Administration

What you’ll learn

  • Familiar with monitoring tools
  • Familiar with subsystems like CPU/Memory/IO/Network
  • Hands-On labs with examples.
  • High Memory Utilization causing performance issues.
  • High CPU Utilization causing performance issues.
  • Network Utilization (Packet loss, errors) causing performance issues.
  • High Disk IO Utilization causing performance issues.
  • Familiar with tcpdump – Network Packet Analyzer
  • Familiar with lsof – List open files
  • Linux Find commands with various examples
  • Command to list out top processes consuming highest memory utilization
  • Command to list out top processes consuming highest cpu utilization
  • Viewing Hardware Resources
  • Configuring Kernel Tunables
  • Managing Resource Limits
  • Proc File System
  • Sysfs File System
  • Kernel Modules
  • lsof, tcpdump commands

 

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