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From Trustin Lee <>
Subject Re: direct access to sockets
Date Thu, 02 Feb 2006 02:01:17 GMT
2006/1/24, Johannes Zillmann <>:
> Trustin Lee schrieb:
> >
> > Yes, we can do this using traffic control, but it breaks the
> > abstraction layer seriously.  Does it worth?  It would be great if you
> > give me good reasons.
> Well let mey i try it...
> First of all my requirements on a communication framework looks like :
> "transport" of (1) buissness logic & (2) large amount of data.
> For (1) mina looks quite good! nothing to add...
> (2) i achieved with some additional support classes also in a good
> manner, but compared with a bio socket transfer the performance is worser.
> Transfering a 80Mb file with mina is 1-2 seconds slower as with a
> simplistic bio implementation. (at least i achieved this results)
> Not remarkable i think, cause for copying a file. streaming is perfect,
> you just have nothing to add.
> I've doing some file copying test on my local machine without sockets
> and i was never able to achieve better performance with nio than with
> bio except with the transferTo() method.
> Searching the internet i came to the point i 've doing nothing wrong but
> i depends on the operating system too.
> Back to main point, i suspect  loosing just one second on 80Mb in a
> scenario where giga bytes have to moved daily could be too much .
> It could put me in the situation where i cannot use mina but build a bio
> communication framework.
> But i think if i would do the job well, i end up in building a to mina
> similar  framework for my buisness logic but with better support for
> streaming.
> Would that make sense  ?
> I don't like the idea ...
> Well let me put it all together...
> If mina would support direct access to the sockets, i can be sure that i
> can achieve the best performance i ever could achieve!
> More then that, when you using mina you can take profit of mina, but
> would not loosing any possibilty of pure sockets,....
> Regardless if i use mina-nio or mina-bio.
> So i think the reasons not to use mina would then be frightening small !
> Sounds that reasonable ?
> I think there are a lot of applictaions out there that have to move
> large data masses, and i think especially them would profit the most!

Sounds very reasonable.  Fortunately, I also need this feature for my new
project for the company.  I believe it will be included in the future
version of MINA somehow.

what we call human nature is actually human habit
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