[ https://issues.apache.org/jira/browse/SSHD-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17320266#comment-17320266 ]
Lyor Goldstein commented on SSHD-1153: -------------------------------------- Please see SSHD-1148 - which deals with this very issue (and was opened by you... :-)) > 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 > Assignee: Jonathan Valliere > Priority: Minor > 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?* > -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@mina.apache.org For additional commands, e-mail: dev-h...@mina.apache.org