[zeromq-dev] ZeroMQ Newbie

[A L]

Hi Mark,

I'd be thankful if you could please point me to those multi-threading
examples using 0mq in the 0mq guide. Or just give me online links.

Thanks

-Asif


On Tue, Apr 2, 2013 at 7:35 PM, A. Mark <gougolith at gmail.com> wrote:

> Yes you can certainly use multiple threads besides zmq's own threads.
> There are many examples of this in the zmq guide.
>
>
> On Tue, Apr 2, 2013 at 2:38 AM, A L <alapex0310 at gmail.com> wrote:
>
>> Hi Eric,
>>
>> Thanks for replying.
>>
>> I also want to know if, in addition to using my own thread, I can use
>> multiple threads to handle ZMQ.
>>
>> Best regards,
>>
>> -Asif
>>
>>
>>
>> On Mon, Apr 1, 2013 at 6:44 PM, Eric Hill <eric at ijack.net> wrote:
>>
>>>
>>>
>>>> I need to handle something like 8000 messages per second in a Windows
>>>> environment. The existing solution handles something like 32000 messages
>>>> per second and is based on Windows/IO-Completion ports.
>>>>
>>>
>>> You should write up a test using any of the provided examples in the
>>> guide and benchmark your setup.  Messaging throughput is very dependent on
>>> your architecture and interconnects.  8000 mps should be easily attainable.
>>>  See here for a good benchmarking methodology:
>>> http://www.zeromq.org/whitepapers:measuring-performance
>>>
>>>
>>>> To start with, I need to know if I can handle that many messages using
>>>> a single-threaded approach with ZMQ as I assume that ZMQ does
>>>> multi-threading internally.
>>>>
>>>
>>> Yes.  Unless you're DOING something with the message, in which case the
>>> time you take to do something will negatively effect the overall throughput.
>>>
>>>
>>>> Also, I'd like to know if I could do better with multiple threads? How?
>>>> I'd be thankful if you could post links to related online articles and
>>>> examples.
>>>>
>>>
>>> Again, zmq does a great job at handling the messages.  You need to do
>>> YOUR work with whatever threading/IOCP/coroutine/fiber/magic methodology
>>> that suits the problem best.
>>>
>>> In addition, I want to know if I can send each ZMQ message encrypted
>>>> using Win32 Crypto API's default RSA provider, RSA_PROV_FULL,  (I don't
>>>> know if other open-source alternatives exist to accomplish the same).
>>>>
>>>
>>>  zmq sends opaque messages.  The data you put in the messages can be
>>> with whatever encryption you choose.
>>>
>>>
>>>> Finally, what causes the message loss? In which situations can I loose
>>>> messages?
>>>>
>>>
>>> Switch latency, router latency, network latency in general, lousy
>>> network card, anti-virus programs, cosmic rays, poor orientation to the
>>> ether wind, etc.  Message loss happens.  It's your job to minimize it as
>>> much as possible, and deal with it when it happens.
>>>
>>>
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>>>
>>>
>>
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