I am looking for a script which does monitor the cpu usage per day. All the scripts that I have come across does kind of real time monitoring and send an email if it meets certain aspects like the load increasing beyond 80%.
Is it possible to monitor and understand the Maximum, minimum and average utilization of a CPU using a shell script?
You can use below script to monitor server load,
#!/bin/bash
r=$(cat /proc/loadavg | awk -F. '{print $1}')
if [ $r -ge 50 ]
then
/bin/mail -s "Warning: High Server Load on: `hostname -i` Load Average: $r" [email protected]
fi
save it as, loadmon.sh
add cron:
* * * * * /bin/sh /path/for/loadmon.sh
Thanks.
awk '{print $1 * 100}' /proc/loadavg. If this is not smaller than 100*number of CPUs, the server is under heavy load.It's been more than one year to this question and this is how I fixed it at the time. I apologize for the delay in posting as I am not a frequent user.
I have written a script using vmstat and wrote the output to the fileload.log on a daily basis. I then took it to internet and there is an excellent load monitoring tool that converts the vmstat log to graphs of CPU, RAM and processor utlis. I have used this free tool to visualize the vmstat graphs.
vmstat -n 5 > vmstat.log
Check VMStax for Visualization of vmstat for uploading the vmstat log to generate the graphs.
Thanks!
i think you don't need a script for this task. you can use mpstat or sar follow the link for detail description: http://www.linuxexplorers.com/2012/08/linux-commands-to-check-cpu-and-memory-usage/
