Linux Performance Monitoring & Tuning
Introduction about Performance monitoring in Linux
Important four subsystems that needs to be monitored.
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
6. tcpdump- Network Packet Analyzer
Lab on Commands to manage performance issues in Linux Servers
Lab on SAR (System Activities Statistics)
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
Report sar data from a specific time
Lab on tcpdump- Network Packet Analyzer
For example: number of packets received (transmitted) through the network card, statistics of packet failure etc
Lab on lsof - List open files
Lsof command used in many Linux/Unix like system that is used to display list of all the open files and the processes.
My Name is Shikhar Verma and I am in IT industry since 2005 and currently working as Solution Architect.
I had been worked as Senior Linux Administration on many MNC's and global projects like, I had worked for AT&T Bell South, US Project for 3 years as Senior Linux Administrator and also I got an opportunity to work for global Johnson n Johnson project for 2 years as a consultant for Linux & HP-UX Environment.
My Primary Skills is Linux Administration and Secondary in HP-UX and AWS Cloud( Amazon Web Services), Shell Scripting etc