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Asked: 2026-06-15T04:42:36+00:00

I’m developing a system for exchanging data between client and server application using sockets

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I’m developing a system for exchanging data between client and server application using sockets via TCP.

The server was written long ago in C++ (by a third part), the client instead is the application that I’m still developing in C#. The bases have already been completed. Both applications are communicating properly. The problem is that data is exchanged (in my opinion) too slowly.

I emphasize in my opinion because I have no idea what you can actually expect using sockets via TCP. Currently, and by eye, after several tests, the communication speed is an average of 200/250 KB per second, both in reception and in sending.

There are applications that allow you to evaluate the speed of data exchange between two endpoints on a specific port? What speed should I expect?

More specifically, the client and the server are developed for the file sharing. Currently, the client can receive and send one file at a time. The protocol would do otherwise (receive/send multiple files at once), but for security reasons I preferred otherwise (if you’re receiving more than one file and you lose the connection you’ll lose all files you’re receiving).

Change this feature could significantly affect the speed of data exchange? In what way?

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1 Answer

  1. Editorial Team

    First, you have to know the bandwith of the link your host provides you to know what to expect. If you are hosting it yourself, your upload speed may be way slower than the download speed link. You can log into your server and run a speed test.

    I had a situation similar to yours (developed a server and a client to send binary data to it) and by that time (2-3 years ago) I used a version of this tool to measure the speed of the data exchange. You would install it on your server, set up the monitor (ports you want to watch, etc), configure the charts and let it run for some time. It worked really well. You can look for other similar tools searching for “Bandwidth Traffic Monitor”.

    If you allow your application to exchange multiple files at the same time, have in mind that your link speed will be divided among the connections and, depending on how many clients are using your application, the multiple connections and file writes your server will be doing may be limited by its processing capacity, in addition to the bandwith.

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