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Subject Re: [Mina] 'messageSent' semantic
Date Wed, 11 Jan 2006 15:24:02 GMT

I was trying to measure *in the server* the time between a message is received
by the client and the reply is received by the server.

This would have been nice for my performance tests.

But it merely seems impossible.


> Hi,
> On 1/11/06, Niklas Therning <> wrote:
>> Well, I'm not an expert on TCP/IP but from what I know I think it will
>> be hard and require very low level programming to achieve that kind of
>> control. The Java abstraction of Socket IO (both blocking and
>> non-blocking) is too high-level.
>> I guess one would have to map packet sequence numbers to messages and
>> then be able to intercept acknowledges of sent packets to do what you
>> want. I'm not sure if OS:es allows you to get that kind of control.
> I think what he needs to is to implement a "correlation identifier"
> (
> in his message protocol.
>> But as I said, I'm no expert on TCP/IP so please correct me if I'm wrong.
>> /Niklas

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