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Breakdown responses time

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    The rate of retransmission is an indication in the form of the percentage of errors detected
    during the TCP/IP exchange. Data packets that are lost or abandoned in the network are
    reissued (after a timeout) by the sender (client or server) at the TCP/IP stack level. This
    identification is possible because of packet numbering and sequence checking. This
    phenomenon is characteristic of network congestion, increasingly longer waits,
    transmission errors between some of the private or public network nodes.
    Retransmission of packets impact network time and, consequently, total response time.

    • Client time reflects the response time spent in the client application and to the time

    required by the user (think time) to enter data and respond. Depending on the case, the
    client application may be a web browser, a Java application or other. For client
    applications that use the HTTP protocol, client time also includes the time spent in the
    HTTP layer. Client time is dependent on how powerful the PC on which the client
    application runs is, and also on the use of the applications and software running on the

    • Network time corresponds to the response time between the two transport entities of thetwo computers associated with the client and the server or proxy. The "network" time
      measured represents the measurement of TCP protocol exchanges. Changes in network
      time should be analyzed against indicators of flow rates and the rate of retransmission.
    • Server time represents the time spent in the part of the application that runs on servers.

    This time corresponds globally to the time spent in front-end servers, application servers,
    database servers, etc. For applications using the HTTP protocol, the server time includes
    the time spent in the HTTP layer. (Where a proxy server is used, see the section

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