Shell – script for logging all the stats for a particular process

centoscpuiomonitoringshell-script

I want to monitor CPU usage, disk read/write usage for a particular process, say ./myprocess.

To monitor CPU top command seems to be a nice option and for read and write iotop seems to be a handy one.

For example to monitor read/write for every second i use the command iotop -tbod1 | grep "myprocess".

My difficulty is I just want only three variables to store, namely read/sec, write/sec, cpu usage/sec. Could you help me with a script that combines the outputs the above said three variables from top and iotop to be stored into a log file?

Thanks!

Best Answer

How about PidStat?. Have you tried it? You may need the Pid for the process you want to monitor, but that should be fairly easy to get with the ps command and a bit of awk chop-chopping.

It's part of the package sysstat which you can install in .deb based systems by typing apt-get install sysstat

Related Solutions

Run ‘top’ Command Once and Exit – How to Guide

In Linux, you can try this:

top -bn1 > output.txt

From man top:

-b : Batch-mode operation
            Starts top in 'Batch' mode, which could be useful for sending
            output from top to other programs or  to  a  file.   In  this
            mode, top will not accept input and runs until the iterations
            limit you've set with the '-n' command-line option  or  until
            killed.
....
-n : Number-of-iterations limit as:  -n number
            Specifies  the  maximum  number of iterations, or frames, top
            should produce before ending.

With OS X, try:

top -l 1

From top OSX manpage:

 -l <samples>
              Use logging mode and display <samples> samples, even if 
              standard output is a terminal. 0 is treated  as  infinity.   
              Rather than redisplaying, output is periodically printed in 
              raw form. Note that the first sample displayed will have an 
              invalid %CPU displayed for each process,  as it is calculated 
              using the delta between samples.

Process logging tool for solaris

Use auditing.

Solaris Auditing (Overview)

Auditing generates audit records when specified events occur. Most commonly, events that generate audit records include the following:

System startup and system shutdown

Login and logout

Process creation or process destruction, or thread creation or thread destruction

Opening, closing, creating, destroying, or renaming of objects

Use of privilege capabilities or role-based access control (RBAC)

Identification actions and authentication actions

Permission changes by a process or user

Administrative actions, such as installing a package

Site-specific applications

Audit records are generated from three sources:

By an application

As a result of an asynchronous audit event

As a result of a process system call

A good blog article on Solaris auditing can be found here.

Best Answer

Related Solutions

Run ‘top’ Command Once and Exit – How to Guide

Process logging tool for solaris

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