I am trying to create a shell script which will check the CPU utilization. I use command
to check the %CPU usage. It give s me below output
Below this output it shows several processes and their CPU utilization.
This output changes after 4-5 seconds.
I am trying to develop a script which will add up a value in last row and 6th column ( IDLE) continuously for one minute and take its average. If this average is less than 20 then send a mail to xyz@info.com with body message "CPU utilization is high on server"
for example in one minute values in last row and 6th column changes in one minute as 78,45,67,78,86 then add up all these values and find its average. If it is less than 20 then send mail.
This script should continuously run in background 24*7.
If you are after the server as a whole, then have a look at the manual pages for vmstat and sar as you may be trying to engineer something for which there is already a solution. You also don't want to load processing on to your server to measure how busy it is, because that will just make it busier.
Besides the idle column, there are other columns in that top output that also indicate idle time, so you may need to add those as well. Also you need to consider the time span in which the CPU Usage took place. If it is just 5 seconds (checking every 5 seconds may put extra load on your system) then is that bad? Also the time of day may matter..
Hello experts,
we have input files with 700K lines each (one generated for every hour). and we need to convert them as below and move them to another directory once.
Sample INPUT:-
# cat test1
1559205600000,8474,NormalizedPortInfo,PctDiscards,0.0,Interface,BG-CTA-AX1.test.com,Vl111... (7 Replies)
I'm a newbie to shell scripting, I was given this script to modify. This script that monitors when CPU Usage is too high based off the top command. The comparison is not working as it should. Its comparing a decimal to a regualar interger. When it send me an email, it send an email and ignores the... (21 Replies)
Hi all
I was wondering if its possible to write a script to keep CPU usage at 90%-95%? for a single cpu linux server?
I have a perl script I run on servers with multple cpu's and all I do is max all but one cpu to get into the 90'% utilised area. I now need a script that raises the CPU to... (4 Replies)
Hi All,
I have a script which does report the cpu usuage, there are few output parameter/fields displayed from the script. My problem is I have monitor the output and decide
which cpu number (column 2) has maximum value (column 6).
Since the output is displayed/updated every seconds, it's very... (1 Reply)
Hi Experts,
I am executing multiple instances(in parallel) of perl script on HP-UX box.
OS is allocating substantial amount of CPU to these perl processes,resulting higher cpu utilization.
Glance always shows perl processes are occupying majority of the CPU resource. It is causing slower... (2 Replies)
Hi Guys,
I need to write a script capable of identifying when a high cpu utilitzation process. It sounds simple but we are on a AIX 5.3 environment with Virtual CPU's (VP's) and logical CPU's. Please any ideas or tips would be highly appreciated. Thanks.
Harby. (6 Replies)
I'm writing a bash script to log some selections from a sensors output (core temp, mb temp, etc.) and I would also like to have the current cpu usage as a percentage. I have no idea how to go about getting it in a form that a bash script can use. For example, I would simply look in the output of... (3 Replies)
Hello Friends,
On one of my Solaris 10 box, CPU usage shows 100% using "sar", "vmstat". However, it has 4 CPUs and prstat and glance are not showing enough processes to justify high CPU utilization.
=========================================================================
$ prstat -a
... (4 Replies)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)