Linux Performance Monitoring

****Linux Performance Monitoring ****

Check :   CPU Utilization, Memory, Disk space, # of network connections, disk i/o

• top
• df -h 
• cat /proc/cpuinfo 
• free -m 
• netstat -n
• iostat 

Other :

• /var/log/messages
• docker ps 
• netstat -n 
• java logs 

Tools:

• New Relic ,  Nagios ,  App Dynamics 
• chkmk , scout--  scoutapp,com 
• PRTG   
• vCenter    monitor network traffic bits/sec

Articles:

• http://www.brendangregg.com/blog/2017-08-08/linux-load-averages.html
• http://blog.scoutapp.com/articles/2009/07/31/understanding-load-averages
• http://www.linuxjournal.com/article/9001
• https://stackoverflow.com/questions/21617500/understanding-load-average-vs-cpu-usage
• https://en.wikipedia.org/wiki/Load_(computing)
• https://www.cyberciti.biz/tips/top-linux-monitoring-tools.html

https://www.tecmint.com/linux-performance-monitoring-with-vmstat-and-iostat-commands/

https://linux.101hacks.com/unix/iostat/

• google search: linux load average vs cpu usage
• google search:  linux top load average
• google search: iostat examples

Other Stuff

https://linoxide.com/linux-command/commands-wipe-disk-linux/

https://www.cyberciti.biz/tips/vmware-add-a-new-hard-disk-without-rebooting-guest.html