[jboss-user] [JBossCache] - Questions regarding performance of read-only operations

haviv.rosh@gmail.com do-not-reply at jboss.com
Sat Mar 24 17:52:06 EDT 2007


Hi
1)I was wondering why read operations - such as POJO aspectized getters and PojoCache.getObject method - have to be so slow ...
After reviewing the code - it seems that even for Read Only operations there is a Method call to get the data via the JChannel:

  |    public Node get(Fqn fqn) throws CacheException
  |    {
  |       MethodCall m = MethodCallFactory.create(MethodDeclarations.getNodeMethodLocal, new Object[]{fqn});
  |       return (Node) invokeMethod(m);
  |    }
  | 
I was wondering what is the reason for doing that ? 
After all cache is read-mostly and read operations should as fast as regular direct method calls.

2)Another question is - Are there any optimizations if the cluster member size is 0 ? (I didn't see any - although in the JGroups Distributed map examples there are)  
If there are no members on the channel why do so much work ?

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