TCP/IP localhost communcation issue











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I am using Qt and QTcpSocket class to develop two console applications communicating each other via socket in localhost on the same machine. This has to be done via socket for backward compatibility.



During the execution, a third application requires a lot of CPU, which usage goes quickly to 100% for some seconds. I can't avoid this behavior. In this situation, the communication gets a delay (i.e. the string sent from the application A is received by the application B many hundreds of ms later).



Obviously, the socket runs in a specific thread and I set the thread's priority to TimeCritical:



QThread::currentThread()->setPriority(QThread::TimeCriticalPriority);


Do you know how to solve this problem?
Thanks






qt cpu-usage tcp-ip qtcpsocket thread-priority







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  • can you provide a Minimal, Complete, and Verifiable example
    – Redanium
    6 hours ago










  • which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
    – transistor
    4 hours ago










  • On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
    – transistor
    3 hours ago















up vote
0
down vote

favorite












I am using Qt and QTcpSocket class to develop two console applications communicating each other via socket in localhost on the same machine. This has to be done via socket for backward compatibility.



During the execution, a third application requires a lot of CPU, which usage goes quickly to 100% for some seconds. I can't avoid this behavior. In this situation, the communication gets a delay (i.e. the string sent from the application A is received by the application B many hundreds of ms later).



Obviously, the socket runs in a specific thread and I set the thread's priority to TimeCritical:



QThread::currentThread()->setPriority(QThread::TimeCriticalPriority);


Do you know how to solve this problem?
Thanks






qt cpu-usage tcp-ip qtcpsocket thread-priority







share|improve this question






















  • can you provide a Minimal, Complete, and Verifiable example
    – Redanium
    6 hours ago










  • which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
    – transistor
    4 hours ago










  • On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
    – transistor
    3 hours ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I am using Qt and QTcpSocket class to develop two console applications communicating each other via socket in localhost on the same machine. This has to be done via socket for backward compatibility.



During the execution, a third application requires a lot of CPU, which usage goes quickly to 100% for some seconds. I can't avoid this behavior. In this situation, the communication gets a delay (i.e. the string sent from the application A is received by the application B many hundreds of ms later).



Obviously, the socket runs in a specific thread and I set the thread's priority to TimeCritical:



QThread::currentThread()->setPriority(QThread::TimeCriticalPriority);


Do you know how to solve this problem?
Thanks






qt cpu-usage tcp-ip qtcpsocket thread-priority







share|improve this question













I am using Qt and QTcpSocket class to develop two console applications communicating each other via socket in localhost on the same machine. This has to be done via socket for backward compatibility.



During the execution, a third application requires a lot of CPU, which usage goes quickly to 100% for some seconds. I can't avoid this behavior. In this situation, the communication gets a delay (i.e. the string sent from the application A is received by the application B many hundreds of ms later).



Obviously, the socket runs in a specific thread and I set the thread's priority to TimeCritical:



QThread::currentThread()->setPriority(QThread::TimeCriticalPriority);


Do you know how to solve this problem?
Thanks






qt cpu-usage tcp-ip qtcpsocket thread-priority




qt cpu-usage tcp-ip qtcpsocket thread-priority






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 9 hours ago









Andrea Quattrini

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  • can you provide a Minimal, Complete, and Verifiable example
    – Redanium
    6 hours ago










  • which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
    – transistor
    4 hours ago










  • On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
    – transistor
    3 hours ago


















  • can you provide a Minimal, Complete, and Verifiable example
    – Redanium
    6 hours ago










  • which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
    – transistor
    4 hours ago










  • On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
    – transistor
    3 hours ago
















can you provide a Minimal, Complete, and Verifiable example
– Redanium
6 hours ago




can you provide a Minimal, Complete, and Verifiable example
– Redanium
6 hours ago












which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
– transistor
4 hours ago




which OS do you use? setPriority() is not supported on linux doc.qt.io/archives/qt-4.8/qthread.html#setPriority
– transistor
4 hours ago












On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
– transistor
3 hours ago




On Linux you may run your program with ‚nice‘, on windows you can set the execution execution rights, if you have an admin account: support.microsoft.com/en-gb/help/110853/…
– transistor
3 hours ago

















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