Hi Malaka,

Yes. Once I compare this performance with other implementations and will
arrange a code review.

@Malith
I will compare the performance of this custom connection pool
implementation with other implementations as it is mentioned in the mail
thread [1] that Stormpot throughput is highest, will check the possibility
to add in the connector and analyze performance results.

[1] -  "[Architecture] Benchmarks for Object Pool Implementations"

Thanks,
Kathees

On Thu, Dec 1, 2016 at 9:29 AM, Malith Jayasinghe <[email protected]> wrote:

> Hi Kathees,
>
> The underlying implementation of pool can have a significant impact on the
> performance. See the architecture tread "bench marks for object pool
> implementations"
>
> What is reason for going for a custom implementation here? Since this is a
> custom implementation it might be a good idea to do a micro-bench mark of
> the pool and compare its performance with other implementations.
>
> You can also profile the application to find out where the contentions etc
> are and then improve the performance (by narrowing down lock scopes etc)
>
> regards
>
> Malith
>
> On Wed, Nov 30, 2016 at 3:26 PM, Malaka Silva <[email protected]> wrote:
>
>> Seems like a significant improvement.
>>
>> I guess pool exists per node in cluster?
>>
>> Once completed please arrange a code review.
>>
>> On Wed, Nov 30, 2016 at 12:27 PM, Kathees Rajendram <[email protected]>
>> wrote:
>>
>>> Hi,
>>>
>>> I am working on connection pool implementation for Kafka [1] and JMS [2]
>>> connectors. In the existing connectors, connections are created and
>>> closed per message which gives the performance issue. I have improved the
>>> Kafka connector with configurable connection pool parameter. When
>>> publishing the messages, the maximum pool size parameter value can be
>>> changed in the connector configuration. Now the implementation with
>>> connection pool gives better performance.
>>>
>>> The following results are with connection pool implementation.
>>> Average throughput -  4980/s
>>>
>>>
>>> *Threads & Pool Size* *Messages per a Thread* *No of Messages* *A
>>> Message Size(byte)*
>>> *Throughput (/s)*
>>> 10
>>> 500 5,000 106 3728
>>> 20 500 10,000 106 4757
>>> 100
>>> 2500 250,000 106 5283
>>> 100 10000 1,000,000 106 4920
>>>
>>>
>>> The following results were without connection pool implementation.
>>> Average throughput -  2767/s
>>>
>>> *Threads* *Messages per a Thread* *No of Messages* *A Message
>>> Size(byte)*
>>> *Throughput (/s)*
>>> 10 500 5,000 106 1590
>>> 20 500 10,000 106 2251
>>> 100 250 25,000 106 2940
>>> 1,000 1500 1,500,000 106 2780
>>> In my git repo [3], I have committed the connection pool implementation
>>> for Kafka connector. Please give your suggestion.
>>>
>>> [1] - https://wso2.org/jira/browse/ESBCONNECT-122
>>> [2] - https://wso2.org/jira/browse/ESBCONNECT-142
>>> [3] - https://github.com/RKathees/esb-connector-kafka/blob/master/
>>> src/main/java/org/wso2/carbon/connector/KafkaConnectionPoolManager.java
>>>
>>> Thanks,
>>> Kathees
>>> --
>>> Kathees
>>> Software Engineer,
>>> email: [email protected]
>>> mobile: +94772596173 <077%20259%206173>
>>>
>>
>>
>>
>> --
>>
>> Best Regards,
>>
>> Malaka Silva
>> Senior Technical Lead
>> M: +94 777 219 791 <+94%2077%20721%209791>
>> Tel : 94 11 214 5345
>> Fax :94 11 2145300
>> Skype : malaka.sampath.silva
>> LinkedIn : http://www.linkedin.com/pub/malaka-silva/6/33/77
>> Blog : http://mrmalakasilva.blogspot.com/
>>
>> WSO2, Inc.
>> lean . enterprise . middleware
>> https://wso2.com/signature
>> http://www.wso2.com/about/team/malaka-silva/
>> <http://wso2.com/about/team/malaka-silva/>
>> https://store.wso2.com/store/
>>
>> Don't make Trees rare, we should keep them with care
>>
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>>
>>
>
>
> --
> Malith Jayasinghe
>
> WSO2, Inc. (http://wso2.com)
> Email   : [email protected]
> Mobile : 0770704040
> Lean . Enterprise . Middleware
>



-- 
Kathees
Software Engineer,
email: [email protected]
mobile: +94772596173
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