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https://issues.apache.org/jira/browse/SSHD-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Susmit Sarkar updated SSHD-1153:
--------------------------------
Description:
IoServiceFactoryFactory ==> *NIO2, MINA, NETTY*
How does this works internally, and how performance will be affected with the
different IoServiceFactoryFactory.
We did lots of performance testing and found NIO2 is the best performing of the
3? Why is it the best of the other 2, and why Apache selects it as default.
(Tested with 50-75 concurrent threads. Did 2 types of test *[1.] PUT for 1.5kb
files for 75 concurrent threads [2.] PUT for 100 MB files for 40-50 concurrent
threads*)
How do NIO Worker Threads affect the performance? Attaching a screenshot from
the thread dump which I took
!image-2021-03-29-23-52-39-814.png!
All the threads in park state and some are runnable in different phases of
execution. I am not able to decipher what does the stacks mean:
The details which I got are (*PARKED*):
!image-2021-03-29-23-54-01-301.png!
For *RUNNABLE:*
*!image-2021-03-29-23-55-33-299.png!*
*Lastly, I want to bring this to notice not all threads are used out of 75
threads I see 50 to be in runnable and the remaining 25 to be in the parked
state, is it the expected behavior?*
was:
IoServiceFactoryFactory ==> *NIO2, MINA, NETTY*
How does this works internally, and how performance will be affected with the
different IoServiceFactoryFactory.
We did lots of performance testing and found NIO2 is the best performing of the
3? Why is it the best of the other 2, and why Apache selects it as default.
How does NIO Worker Threads affect the performance? Attaching a screenshot from
the thread dump which I took
!image-2021-03-29-23-52-39-814.png!
All the threads in park state and some are runnable in different phases of
execution. I am not able to decipher what does the stacks mean:
The details which I got are (*PARKED*):
!image-2021-03-29-23-54-01-301.png!
For *RUNNABLE:*
*!image-2021-03-29-23-55-33-299.png!*
> NIO2 IOServiceFactory, NIO Worker Threads and the performance
> -------------------------------------------------------------
>
> Key: SSHD-1153
> URL: https://issues.apache.org/jira/browse/SSHD-1153
> Project: MINA SSHD
> Issue Type: Question
> Reporter: Susmit Sarkar
> Priority: Critical
> Attachments: image-2021-03-29-23-52-39-814.png,
> image-2021-03-29-23-54-01-301.png, image-2021-03-29-23-55-16-337.png,
> image-2021-03-29-23-55-33-299.png
>
>
> IoServiceFactoryFactory ==> *NIO2, MINA, NETTY*
> How does this works internally, and how performance will be affected with the
> different IoServiceFactoryFactory.
> We did lots of performance testing and found NIO2 is the best performing of
> the 3? Why is it the best of the other 2, and why Apache selects it as
> default. (Tested with 50-75 concurrent threads. Did 2 types of test *[1.] PUT
> for 1.5kb files for 75 concurrent threads [2.] PUT for 100 MB files for 40-50
> concurrent threads*)
> How do NIO Worker Threads affect the performance? Attaching a screenshot from
> the thread dump which I took
> !image-2021-03-29-23-52-39-814.png!
> All the threads in park state and some are runnable in different phases of
> execution. I am not able to decipher what does the stacks mean:
> The details which I got are (*PARKED*):
> !image-2021-03-29-23-54-01-301.png!
> For *RUNNABLE:*
> *!image-2021-03-29-23-55-33-299.png!*
> *Lastly, I want to bring this to notice not all threads are used out of 75
> threads I see 50 to be in runnable and the remaining 25 to be in the parked
> state, is it the expected behavior?*
>
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