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From "Jonathan Valliere (Jira)" <j...@apache.org>
Subject [jira] [Closed] (DIRMINA-1134) I would like to know reason, I am observing significant CPU utilization improvement after migrating to latest version, I need to justify same to our stakeholders
Date Mon, 12 Oct 2020 03:01:00 GMT

     [ https://issues.apache.org/jira/browse/DIRMINA-1134?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Valliere closed DIRMINA-1134.
--------------------------------------
    Resolution: Not A Bug

> I would like to know reason, I am observing significant CPU utilization improvement after
migrating to latest version, I need to justify same to our stakeholders
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: DIRMINA-1134
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-1134
>             Project: MINA
>          Issue Type: Wish
>            Reporter: kjhawierhjbasdf
>            Priority: Major
>
> Hello Team,
> We are using Apache MINA(v2.0.21) for tcp tls server implementation. I have 2 queries.
> 1. CPU utilization query
> We were using 2.0.9 before, and we saw there were few issues related to high cpu utilization
reported with our service. Then we recently migrated to 2.0.21 and we are seeing significant
improvement in cpu utilization. Its using less cpu without degrading performance.
> Can you please confirm, If there are any fixes released in-between which can cause such
improvement. I have to provide justification to our stake-holders about the improvement, they
suspect that - It may not be the improvement, It may be the code changes which is limiting
CPU usage to single core.
> 2. Processor count query
> Earlier, we were using default constructor for NioSocketAcceptor object, which creates
number of processors equal to number of cores. 
> But, In our case, we have few more services running on the machine, And I am thinking
to use NioSocketAcceptor object and pass the processor count with 1 or 2. I have verified
this change, I did no see the performance degradation with our service.
> Do you see any problem with this? Anything else needs to be considered before we go ahead
with this change?
> Thanks,
> Rupesh Shah



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