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i am having two kvm hosts with same h/w and os,only difference is one host is tuned to use huge pages.

How can i compare which is performing better

I am planning to use some application that is more memory bound and compare its performance for a particular time.

Is there any memory usage simulator that serves similar function,i dont think stress can work in this way.can any one suggest a better way of comparing this?

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closed as not constructive by Michael Hampton, Ward, Dave M, mgorven, mdpc Feb 26 '13 at 20:11

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what kind of application are you going to execute on these kvm machines? –  Andrea de Palo Feb 26 '13 at 12:34
    
possible duplicate of Can you help me with my capacity planning? –  Michael Hampton Feb 26 '13 at 13:05
    
@AndreadePalo Mysql,is there a better m/y bound application that can be benchmarked to compare. –  kevin Feb 26 '13 at 14:37
    
@MichaelHampton i dont think as duplicate,i asked for a tool to benchmark :) –  kevin Feb 26 '13 at 14:42
    
@kevin You aren't describing "better" in a quantifiable way. Do that, then proceed per the capacity planning question in terms of how to benchmark. (The tools you want to use depend on what you want to measure -- you wouldn't measure liquid volume with a ruler, just like you wouldn't measure page load speed with top) –  voretaq7 Feb 26 '13 at 19:14

2 Answers 2

up vote 0 down vote accepted

If you're concerned about how fast your application runs you should benchmark it by running your application. It's unlikely that anything else will replicate your application's behaviour exactly and so isn't a guarantee that your application will perform better. Devise a reproducible task for your application and time it.

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What about a combination of sysbench and vmstat?

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