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Standard Diviation

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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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Re: Standard Diviation

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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

If you find that this or any post resolves your issue, please be sure to mark it as an accepted solution

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Re: Standard Diviation

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

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Honored Contributor.
Honored Contributor.

Re: Standard Diviation

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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

If you find that this or any post resolves your issue, please be sure to mark it as an accepted solution

View solution in original post

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Regular Contributor.
Regular Contributor.

Re: Standard Diviation

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Thank your for your response, I will check on that.
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