Scan Mode Enquiry

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Scan Mode Enquiry

Hello there!

I was looking in detail at the command-line parameters used in RTI Perftest and came across -scan, a publisher specific parameter. The description states:

"Run test in scan mode. The list of sizes is optional and can be either in the [32,63000] range or the [63001,2147482620] range (Large Data cannot be tested in the same scan test as small data sizes). Default values to test with are ‘32:64:128:256:512:1024:2048:4096:8192:16384:32768:63000’ The -executionTime parameter is applied for every size of the scan. If -executionTime is not set, a timeout of 60 seconds will be applied."

What exactly is scan mode? Is this when the publishers/subscribers scan for new participants during the test?

I tried looking online for anything regarding "dds scan mode" and couldn't find anything. Any advice/guidance would be incredibly helpful!

Thank you,

Kaleem

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No, "scan" refers to running RTI Perftest to test data of different lengths in a single invocation of the test.  It will produce results for different data lengths, by first sending 32 bytes for a set amount of time (executionTime), then 64 bytes, then 128 bytes, etc.

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Hi Howard,

That is a very useful configuration parameter for running multiple tests autonomously. How would I be able to differentiate between the results within the command line output?

Thanks,

Kaleem

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Hi Kaleem,

Perhaps you should try running RTI Perftest with the scan mode and see if that doesn't give you what are looking for.

--Howard

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Great! I will do that. Thanks a lot for all the guidance Howard!