Display CPU usage for a given process.

TrinityMH · 10-03-2018, 03:11 PM

Hi, I have a problem with finding a command that in linux will display a given percentage of CPU usage for a given process.

Mainly wants such information to download to the website. It presents itself like this:
http://prntscr.com/l1uk3r

I found something like:
https://www.booleanworld.com/guide-linux-top-command/

But rather, this package will not be able to get only percentages.

I apologize if something is not understandable because the text is translated by an interpreter. However, please ask.

lazydog · 10-03-2018, 07:38 PM

Look into the ps commnad

syg00 · 10-03-2018, 09:41 PM

Quote:

Originally Posted by TrinityMH

this package will not be able to get only percentages.

"top" has the data. but it needs to be extracted - it is useful in that it gives you the current (actual) CPU% for whatever interval you choose.
"ps" gives CPU% since the program started, but should suffice for your uses - it accepts parameters to specify the output. For example, checking firefox with no headers so just the number is output:

Code:

ps -C firefox -o %C --no-headers
 2.0

ondoho · 10-04-2018, 12:36 AM

between ps and top, you probably need to script something.
not sure what your requirements are.

Quote:

Originally Posted by TrinityMH

Mainly wants such information to download to the website. It presents itself like this:
http://prntscr.com/l1uk3r

i cannot see the image.
it's better if you provide a direct link to the image itself.

TrinityMH · 10-04-2018, 02:26 AM

Generally, this is needed for the resource monitor for Minecraft servers.
I have already made the disc and I have just had to create a processor and ram usage.

Link directly to the graphic:
https://i.imgur.com/O3v8luf.png

Preview from htop level.
http://prntscr.com/l1zucw

dc.901 · 10-04-2018, 05:57 AM

If you have the PID, then you can do:

Code:

top -p <PID>

If you are looking for resource monitor then there are many out there...

TrinityMH · 10-04-2018, 06:10 AM

Yes, I need information to return and not to show information interactively because PHP will not process it. Mr. Syg00 told me well, but unfortunately I have several java processes and I have to choose one of the chosen ones. Maybe there is a directive to name the "Java" command and then display it using the ps command?

I will display a view from the "htop" package in the tree version.
https://i.imgur.com/8omjgyI.png

frankbell · 10-04-2018, 09:13 PM

This article should help: https://alvinalexander.com/linux/uni...ps-command-cpu

ondoho · 10-05-2018, 11:23 AM

Code:

top -n1 -p $(pidof given_process)

???

TrinityMH · 10-05-2018, 02:00 PM

Done. Thanks to everyone for help.

http://prntscr.com/l2o4am

ondoho · 10-06-2018, 06:26 AM

Quote:

Originally Posted by TrinityMH

Done.

how?
please share your solution.
others will benefit.
then also mark your thread SOLVED.
thank you.