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Units of performance measurement [message #552743]

Fri, 13 August 2010 11:04

SMILANewBee

Messages: 42
Registered: August 2010

Member

Hi,

we have recognized that we can measure executing variables. The interface

CrawlerControllerPerformanceAgent

doesn't tell us in which unit (seconds or milliseconds) the time is measured.

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Re: Units of performance measurement [message #552773 is a reply to message #552743]

Fri, 13 August 2010 13:19

Daniel Stucky

Messages: 35
Registered: July 2009

Member

Hi,

the time is measured in milliseconds.
This information is not part of the interface documentation as there is no guarantee what unit an actual implementation uses.

However, there are usually annotations on the MBean implementation classes like @MeasureUnit("ms"). These are shown when using jconsole. Navigate to Smila/Crawlers/Total/Attributes. There you should see besides others
- AverageDeltaIndicesProcessingTime (ms)
- AverageRecordsProcessingTime (ms)

Bye,
Daniel

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