[zeromq-dev] ZeroMQ Newbie

[A L]

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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