----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/4852/#review7185 -----------------------------------------------------------
http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/BasicRPCCommunications.java <https://reviews.apache.org/r/4852/#comment15860> Bo, I'm a little leery about converting the List and ArrayList to LinkedList and ConcurrentLinkedList. I believe that linked list's will use more memory than the array list due to the double links (forward and backward). Also, is ConcurrentLinkedList supposted to outperform a synchronized ArrayList? I haven't seen much on that. The concurrenthashmap changes look good. - Avery On 2012-04-24 06:11:38, Bo Wang wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/4852/ > ----------------------------------------------------------- > > (Updated 2012-04-24 06:11:38) > > > Review request for giraph. > > > Summary > ------- > > Use ConcurrentHashMap and ConcurrentLinkedQueue to allow concurrent assess to > message map. The concurrencyLevel of ConcurrentHashMap uses the default > value. There may be some performance gain by tuning this value. > > > This addresses bug GIRAPH-185. > https://issues.apache.org/jira/browse/GIRAPH-185 > > > Diffs > ----- > > > http://svn.apache.org/repos/asf/incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/BasicRPCCommunications.java > 1328747 > > Diff: https://reviews.apache.org/r/4852/diff > > > Testing > ------- > > > Thanks, > > Bo > >
