Hi，Gert
First of all thank you for your attention and reply！
During the test,I have monitored the num of threads.
It will not be unlimited growth, but will stabilize to a certain level
of about 200.
So i don't think the threadPool's size is clause.
I will keep with the test,and upload some thread dumps later.
Regards
Gert Vanthienen wrote:
>
> L.S.,
>
> There are really a number of things that can be involved in the poor
> performance you're experiencing. However, since you're experiencing
> the slowdown when adding more threads for servicemix-camel, let's try
> to look into that part first. Could you turn up the core thread pool
> size for that component and then get us a few thread dumps as things
> start slowing down. If adding threads slows things down, we should be
> able to see some of these threads either waiting of blocked, so
> perhaps the thread dumps can help us pinpoint the problem.
>
> On the other hand, I also notice that some of your configurations are
> setting the maximum pool size to -1. Combined with the queue size of
> 0, that means that ServiceMix will create a new thread whenever all
> threads are active and more work arrives. I can imagine this can lead
> to very large thread pools when there's is slowdown somewhere in the
> system and that might as well be a cause for problems. Could you try
> restraining those thread pool sizes to some maximum instead on the
> current -1 (e.g. 64 or 96)
>
> Regards,
>
> Gert Vanthienen
> ------------------------
> Open Source SOA: http://fusesource.com
> Blog: http://gertvanthienen.blogspot.com/
>
>
>
> 2009/11/19 inter <[email protected]>:
>>
>>
>> I am using servicemix-web-3.3.1,runing in weblogic 10.3.
>>
>> I developed proxy service with servicemix-cxf-bc and
>> servicemix-camel,the
>> follow is:
>>
>>
>> external client(load
>> runner)===>cxf-consumer===>camel===>cxf-provider===>external echo service
>>
>> My jvm parameter is:
>> -Xmx1400m -Xms1400m
>>
>> serviceMix's config:
>> servicemix.corePoolSize = 32
>> servicemix.maximumPoolSize = 128
>> servicemix.queueSize = 1024
>>
>> I also reconfig the threadpool for the component:
>> <property name="configs">
>> <map>
>> <entry key="component.servicemix-cxfbc">
>> <bean
>>
>> class="org.apache.servicemix.executors.impl.ExecutorConfig">
>> <property name="corePoolSize" value="64"
>> />
>> <property name="maximumPoolSize"
>> value="-1" />
>> <property name="queueSize" value="0" />
>> </bean>
>> </entry>
>>
>> <entry key="flow.seda.servicemix-cxf-bc">
>> <bean
>>
>> class="org.apache.servicemix.executors.impl.ExecutorConfig">
>> <property name="corePoolSize" value="32"
>> />
>> <property name="maximumPoolSize"
>> value="-1" />
>> <property name="queueSize" value="0" />
>> </bean>
>> </entry>
>>
>> <entry key="flow.seda.servicemix-camel">
>> <bean
>>
>> class="org.apache.servicemix.executors.impl.ExecutorConfig">
>> <property name="corePoolSize" value="4" />
>> <property name="maximumPoolSize"
>> value="-1" />
>> <property name="queueSize" value="512" />
>> </bean>
>> </entry>
>> </map>
>>
>>
>> (1) 20 concurrency , performance:60 Hits per Second,runing well;
>>
>> (2)50 concurrency , performance:80 Hits per Second at the beginning,but
>> will go down to 50 Hits per Second after about 5 minutes,then go down
>> to
>> 30 after 60 minutes.
>>
>> (3)120 concurrency , performance:60 Hits per Second at the beginning,
>> will
>> go down to 50 Hits per Second after about 5 minutes,then go down to 30
>> after 60 minutes, at last 10 after about 8 hours.
>>
>>
>> No matter how I increase the number of concurrent client , the throughout
>> will not increase.
>> And I found that the key parameter is the camel's corePoolSize,
>> If I increase this parameter, throughput significantly decreased ，It
>> seems
>> the best value of this parameter is 4。
>>
>> And I used the netstat command to see network status，I found that，the
>> connections of client to cxf are 120, but the connections of cxf to
>> external service are only about 20!
>>
>> Is there anything configured wrong?
>>
>>
>> --
>> View this message in context:
>> http://old.nabble.com/Load-Test-for--servicemix%27s--proxy-service-tp26420227p26420227.html
>> Sent from the ServiceMix - User mailing list archive at Nabble.com.
>>
>>
>
>
> -----
> ---
> Gert Vanthienen
> http://gertvanthienen.blogspot.com
>
--
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