how to check CPU performance in linux

you the top command

running the top command will display processes ranked by CPU usage

top gives you a dynamic real time report of current running services on your system. it can show system summary infromation and a list of tasks currently being managed by the kernel. use the R option to rost the porcess by cpu like this

#top -R

https://www.webune.com/forums/20100403cccp.html

name top - display linux tasks synopsis top -hv | -bchiss -d delay -n iterations -p pid [, pid ...] the traditional switches â-â and whitespace are optional. description the top program provides a dynamic real-time view of a running sys- tem. it can display system summary information as well as a list of tasks currently being managed by the linux kernel. the types of system summary information shown and the types, order and size of information displayed for tasks are all user configurable and that configuration can be made persistent across restarts. the program provides a limited interactive interface for process manipulation as well as a much more extensive interface for personal configuration -- encompassing every aspect of its operation. and while top is referred to throughout this document, you are free to name the program anything you wish. that new name