cxf-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alessio Soldano (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CXF-6825) Performance bottle neck due to synchronize block on each read
Date Thu, 10 Mar 2016 10:12:40 GMT

    [ https://issues.apache.org/jira/browse/CXF-6825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15189007#comment-15189007
] 

Alessio Soldano commented on CXF-6825:
--------------------------------------

Well, to me those tuning could be something addressed as a later improvement to the change
here. We could start with sensible values, perhaps similar to the default of the JDK ConcurrentHashMap
and then add options for letting the user tune them.

> Performance bottle neck due to synchronize block on each read
> -------------------------------------------------------------
>
>                 Key: CXF-6825
>                 URL: https://issues.apache.org/jira/browse/CXF-6825
>             Project: CXF
>          Issue Type: Bug
>          Components: Bus, JAX-RS
>    Affects Versions: 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.2.0, 3.1.6
>         Environment: All environments
>            Reporter: Yotam Madem
>             Fix For: 3.2.0, 3.1.6
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> In our (IBM MobileFirst foundation) performance tests it is possible to see that many
threads are stuck at:
> "LargeThreadPool-thread-1505" daemon prio=10 tid=0x00007f10f020b800 nid=0x31fc waiting
for monitor entry [0x00007f12bfffd000]
>    java.lang.Thread.State: BLOCKED (on object monitor)
> 	at org.apache.cxf.BusFactory.getThreadBusHolder(BusFactory.java:120)
> 	- waiting to lock <0x00000000c6b99020> (a java.util.WeakHashMap)
> 	at org.apache.cxf.BusFactory.getAndSetThreadDefaultBus(BusFactory.java:202)
>  
> (We use version 3.1.0)
> I did a test fix locally and it seems to resolve our problem so I submitted 2 pull requests:
> for 3.1.6: https://github.com/apache/cxf/pull/119
> for 3.2.0: https://github.com/apache/cxf/pull/120



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message