title: When to use OSGi EventAdmin and when not?
body: <p>I have a general question regarding the usage of the OSGi EventAdmin service. I'm currently using it in a setting where potentially thousands of events can be generated per second. My  fear is that the EventAdmin service might be a bottleneck. Initial results I get from my profiler seem to support this. The questions I have are:</p>
  
  <ol>
  <li>Is there a general rule of thumb when to use the EventAdmin service?</li>
  <li>How do the sendEvent and postEvent methods differ in terms of performance?</li>
  <li>Is there a particular OSGi container which is known to have a low performing EventAdmin implementation?</li>
  </ol>
  
  <p>Thanks in advance for your support!</p>
  
  <p>Cheers,
  Georg</p>