I think the problem is the scalability across multiple CPUs.
In Ryu, you need to call sleep to let other thread running. Threads won't
work parallelly.
2016-10-31 19:19 GMT+08:00 PUZZLE <[email protected]>:
> for example i read that POX for example do not support multi-threading, so
> it shows no scalability across 12 CPU cores in a throughput performance
> test using the cbench tool,
> and i was wondering is it the same if we run the same tests on ryu
>
> 2016-10-31 11:16 GMT+00:00 Yi Tseng <[email protected]>:
>
>> Hi
>>
>> Currently, Ryu supports eventlet only. Ryu won't work if you don't use
>> eventlet.
>>
>> By the way, I don't understand "multithreading" you mean here because
>> every modern programming language supports multithread. (Python, C, java...)
>>
>> Old controller like also support multithreading (see, NOX-MT)
>>
>> Or you mean each applications seperate into different thread? or every
>> switch handled by different thread?
>>
>>
>>
>> 2016-10-31 18:58 GMT+08:00 PUZZLE <[email protected]>:
>>
>>> Hi,
>>> Thank you very much for your response,
>>> so if we didn't activate the eventlet feature ryu wont be multithreading?
>>> My other question was about the other controllers, if known, that
>>> doesn't support the multithreading
>>>
>>> Thanks
>>>
>>> 2016-10-31 2:44 GMT+00:00 Iwase Yusuke <[email protected]>:
>>>
>>>> Hi,
>>>>
>>>> Yes, Ryu does support the multithreading using eventlet.
>>>> You can use ryu.lib.hub.spawn() to invoke a new thread.
>>>> https://github.com/osrg/ryu/blob/master/ryu/lib/hub.py#L47
>>>>
>>>> For the latter question, I'm sorry, I could not understand the latter
>>>> question enough.
>>>> The question is "is there any OpenFlow feature Ryu does not support?",
>>>> right?
>>>>
>>>> Thanks,
>>>> Iwase
>>>>
>>>>
>>>>
>>>> On 2016年10月31日 10:33, PUZZLE wrote:
>>>>
>>>>> Hi,
>>>>> I have a question please,
>>>>> does RYU support the multithreading? and what are the SDN controllers
>>>>> that
>>>>> does not support it?
>>>>> Thank you All
>>>>>
>>>>>
>>>>>
>>>>> ------------------------------------------------------------
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>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Ryu-devel mailing list
>>>>> [email protected]
>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>>>
>>>>>
>>>
>>> ------------------------------------------------------------
>>> ------------------
>>> The Command Line: Reinvented for Modern Developers
>>> Did the resurgence of CLI tooling catch you by surprise?
>>> Reconnect with the command line and become more productive.
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>>
>>
>> --
>> Yi Tseng (a.k.a Takeshi)
>> Taiwan National Chiao Tung University
>> Department of Computer Science
>> W2CNLab
>>
>> https://takeshi.tw
>>
>
>
--
Yi Tseng (a.k.a Takeshi)
Taiwan National Chiao Tung University
Department of Computer Science
W2CNLab
https://takeshi.tw
------------------------------------------------------------------------------
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