Performance bottleneck on Abandoned Object Pool
-----------------------------------------------
Key: DBCP-239
URL: https://issues.apache.org/jira/browse/DBCP-239
Project: Commons Dbcp
Issue Type: Improvement
Affects Versions: 1.3
Reporter: Takayuki Kaneko
AbandonedObjectPool uses ArrayList as trace variable to manage connections.
I found a bottleneck on it.
returnObject(Object) has a synchronized block and it will be a bottleneck if it
manages a lot of connections.
ArrayList#remove(Object) has to do arraycopy each time. It is tuned by native
code, but it is still slower than LinkedList#remove(Object).
IMO, the list doesn't access by index, so LinkedList is better than ArrayList.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
