[jacorb-developer] Delay in serial communication

[Nick Cross]

Hi,

What version of JacORB are you using?

Can you provide more details of your system (sample code perhaps) to 
clarify how your CORBA client/server architecture is affecting the 
separate serial port comms?

Regards

Nick


On 29/03/12 12:46, Kujtim Hyseni wrote:
>
> Hello,
>
> for my project I heave developed a class (implementation class) which
> forwards requests (operations) from client to serial port, waits for
> response, receives the response and sends it back to client but it
> takes a long time to perform it. It delays in receiving the response
> from serial port. For communication with serial port I have developed
> a dedicated class which implements Runnable and
> SerialPortEventListener classes. My class communicates serially with
> 8051 microcontroller. Again, it seems that class delays in receiving
> the byte stream from microcontroller. Microcontroller has a built in
> serial port while my PC uses USB-to-Serial cable. When I communicate
> microcontroller with the class from usual Java program (from main()
> routine) it works fine and it takes less than a second to receive the
> response back.
>
> I did some measurements (100 requests) in two ways. In the first,
> communication class is external and is instantiated from
> implementation class. In the second, communication class is merged
> with implementation class. The results are: for first way average
> response time 9.33266 seconds, minimal response time 4.984 seconds
> while maximal response time 18.015 seconds; for second way average
> response time 8.62625 seconds, minimal response time 4.969 seconds
> while maximal response time 16.015 seconds. These values are
> unacceptable for real time applications and raise the question for
> using JacORB further.
>
>
> What do you think and suggest about?
>
> Best Regards, Kujtim Hyseni
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