Cool.. thanks for the explanation Isuru!

On Tue, Jun 16, 2015 at 5:34 PM, Isuru Perera <isu...@wso2.com> wrote:

> Hi Nirmal,
>
> On Tue, Jun 16, 2015 at 4:37 PM, Nirmal Fernando <nir...@wso2.com> wrote:
>
>> My opinion is we shouldn't enable it by default. My understanding is
>> profiling affects the performance of a JVM.
>>
> With Carbon Metrics, we collect metrics via Java API calls and not via
> direct profiling.
>
> We use Coda Hale's (Dropwizard) Metrics library and there is no known
> performance issues with it.
>
> See following threads in metrics-user group:
> "Overhead of collecting performance stats and publishing in JMX"
> https://groups.google.com/d/msg/metrics-user/CHk14cMmLsM/HXsZUDSZdMcJ
> "metrics performance"
> https://groups.google.com/d/msg/metrics-user/fb-hy6TQJ9g/6AQ1NMUlllEJ
>
> One concern would be periodic reporting to database by the JDBC reporter
> we developed. It runs in a scheduled executor and I guess it shouldn't have
> much impact on the server. We will be doing performance tests with MB and
> we can confirm whether there is an overhead with Metrics.
>
> Thanks!
>
>>
>> On Tue, Jun 16, 2015 at 4:08 PM, Ramith Jayasinghe <ram...@wso2.com>
>> wrote:
>>
>>> $subject ?
>>>
>>> --
>>> Ramith Jayasinghe
>>> Technical Lead
>>> WSO2 Inc., http://wso2.com
>>> lean.enterprise.middleware
>>>
>>> E: ram...@wso2.com
>>> P: +94 777542851
>>>
>>>
>>> _______________________________________________
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>>>
>>
>>
>> --
>>
>> Thanks & regards,
>> Nirmal
>>
>> Associate Technical Lead - Data Technologies Team, WSO2 Inc.
>> Mobile: +94715779733
>> Blog: http://nirmalfdo.blogspot.com/
>>
>>
>>
>
>
> --
> Isuru Perera
> Associate Technical Lead | WSO2, Inc. | http://wso2.com/
> Lean . Enterprise . Middleware
>
> about.me/chrishantha
> Contact: +IsuruPereraWSO2 <https://www.google.com/+IsuruPereraWSO2/about>
>



-- 

Thanks & regards,
Nirmal

Associate Technical Lead - Data Technologies Team, WSO2 Inc.
Mobile: +94715779733
Blog: http://nirmalfdo.blogspot.com/
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