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Software Testing >> Performance & Load Testing

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shippee
Member


Reged: 02/23/09
Posts: 25
Test Results Graphing/Charting
      #716144 - 09/09/12 01:01 PM Attachment (134 downloads)

As a general rule, I ascertain what is a complete transaction, such as purchasing of a permit on line, or filing a quarterly report, etc., that is one complete transaction a user would perform from start to finish.

Then I ramp up the users, going from 1 VU, 2 VU's, 5 VU's, 10 VU's, 25 VU's, 50 VU's, 100 VU's, 200 VU's, 300 VU's, etc.

After this I take the timing files and put them into an Excel spreadsheet, in which I can show transactions per minute plotted against times per each of the VU iterations mentioned above.

I end up with a a chart and graph of where the application has its point of diminishing returns.

Anyone else have a better way of how they present their findings?

Thanks in advance, uploaded sample graph attached to this post.

Steven


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James Pulley
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Reged: 08/01/01
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Loc: NC
Re: Test Results Graphing/Charting [Re: shippee]
      #716152 - 09/09/12 08:32 PM

Does the analysis section of your performance test tool not graph and report these items for you? Excel would seem superfluous in such a case....

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James Pulley
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Re: Test Results Graphing/Charting [Re: James Pulley]
      #716183 - 09/10/12 06:06 AM

Or....http://www.highcharts.com/demo/combo-multi-axes

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merrill77
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Reged: 02/08/01
Posts: 88
Loc: Raleigh, NC USA
Re: Test Results Graphing/Charting [Re: shippee]
      #716358 - 09/12/12 08:32 AM

Quote:

Anyone else have a better way of how they present their findings?




That is exactly the way our product (Load Tester PRO) analyzes the results - by user level (though it doesn't require Excel to do it).

It shows most charts both by time and by users. Looking at the data with time on the x-axis is handy and I wouldn't want to be without it - especially for troubleshooting. But for reporting to management, we find data summarized by user level is much more useful. At least, to our clients.

As you've noted, it is great for observing the performance degradation as a factor of load.

We're always looking for better ways to analyze the data. I've been working on calculations based on degradation of performance from a baseline, but so far, it is not significantly better than what we have today.

--------------------
Chris Merrill
Load Testing Software and Services
http://www.webperformance.com/


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