Linux Performance Monitoring & Analysis
- 0.0
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Brief Introduction
Start in-demand career as a Linux Server Admin and learn from real IT professionals with live Environment Sessions.Description
Course Contents
Linux Performance Monitoring & Tuning
Introduction about Performance monitoring in Linux
Important four subsystems that needs to be monitored.
CPU
Memory
I/O
Network
Familiar & understanding with CPU Utilization
Like Context switches, Run Queue, CPU utilization & Load Average
Familiar & understanding with Memory Utilization
Familiar & understanding with I/O Analyses
Familiar & understanding with Network Monitoring
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
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
Requirements
- Requirements
- PC or Laptop with internet Connection
Knowledge
- Familiar with monitoring tools which can used to check the performance related issues on Linux Server.
- Familiar with four subsystems that needs to be monitored. CPU/Memory/IO/Network
- Created so many labs to explain performance related issues with examples.
- Understanding High Memory Utilization on Linux Server causing performance issues.
- Understanding High CPU Utilization on Linux Server causing performance issues.
- Understanding Network Utilization (Packet loss, errors) on Linux Server causing performance issues.
- Understanding High Disk IO Utilization on Linux Server 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
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