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leer Contributor.
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Standard Diviation

When running my test I am seeing very high Standard Diviation numbers.  Just curious if this is just a result of the program I am testing or are there some techniques that help reduce this number?

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Outstanding Contributor.. JHF Remmelzwaal Outstanding Contributor..
Outstanding Contributor..

Re: Standard Diviation

Checkout Wiki on Standard Deviation and consider min, mean and max transaction duration.

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Gagandeep Malviya Honored Contributor.
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Re: Standard Diviation

Standard Deviation in your test tells whether the response time of a particular transaction is consistent throughout the test or not? The smaller the Standard Deviation, the more consistent transaction response time and you will be more confident about particular page/request. Delivering a consistent experience to the end-user is just as important as delivering a fast and responsive experience.

So better if you could ask developer to tune the application to reduce the SD.

For more information, you can refer to the article:

Importance of Standard Deviation in Performance Testing

Regards,
Gagandeep Malviya

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