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From Camel 2.9 onwards the performance statistics also include average load statistics per CamelContext and Route mbeans. The statistics is average load based on the number of in flight exchanges, on a per 1, 5 and 15 minute rate. This is similar to load statistics on Unix systems. Camel 2.11 onwards allows you to explicit disable load performance statistics by setting loadPerformanceStatisticsloadStatisticsEnabled=false on the <jmxAgent>. Note that it will be off if the statics level is configured to off as well.
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