How to compare the responses from two different servers using Jmeter?

I need to compare the responses from two different servers using Jmeter. I think that Comparison 开发者_如何转开发assertion in Jmeter supports the response comparison. But how to use this? What is the purpose of 'Comparison filters'?

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You'll need the Assertion as a parent or sibling to your compare requests. Make sure you add the Listener "Comparison Assertion Visualizer" to help see the differences/debug

The Filters are to remove strings you know are dynamic, for example a timestamp or unique userID embedded in the response. It uses PERL regular expressions, the same as the post-processor Regex Extractor

Here's a sample structure:

Test Plan
 + Thread Group
   + Server 1
   + Server 2
   + Compare Assertion
 + Compare Assertion Visualizer