Performance ehnancement for TopicExchange
-----------------------------------------
Key: QPID-696
URL: https://issues.apache.org/jira/browse/QPID-696
Project: Qpid
Issue Type: Improvement
Components: C++ Broker
Environment: Any
Reporter: Ted Ross
Priority: Minor
The current code in TopicExchange.cpp does a heap allocation per binding, per
message. The following optimization removes the per-binding allocation and
will improve performance particularly where there are many bindings on a topic
exchange.
Index: TopicExchange.cpp
===================================================================
void TopicExchange::route(Deliverable& msg, const string& routingKey, const
FieldTable* /*args*/){
RWlock::ScopedRlock l(lock);
+ Tokens tokens(routingKey);
+
for (BindingMap::iterator i = bindings.begin(); i != bindings.end(); ++i) {
- if (i->first.match(routingKey)) {
+ if (i->first.match(tokens)) {
Queue::vector& qv(i->second);
for(Queue::vector::iterator j = qv.begin(); j != qv.end(); j++){
msg.deliverTo(*j);
}
}
}
}
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