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Asked: 2026-05-29T15:13:08+00:00

I have a small-scale WPF application using VB.net as the code behind and I

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I have a small-scale WPF application using VB.net as the code behind and I want to add certain features, but i’m concerned about performance. I REALLY appreciate any responses especially if you could include beginner-friendly articles regarding this, but please help me so I can be at ease…

1) My app interacts with a third party database to display “realtime” data to the user. My proposed method is to create a background worker to query a database every 30 seconds and display the data. I query about 2,000 records all long integer type, store them in a dataset, and then use LINQ to create subsets of observable collections which the WPF controls are bound to.

Is this too intensive? how much memory am i using for 2,000 records of long int? Is the background worker querying every 30 seconds too taxing? will it crash eventually? Will it interfere with the users other daily work (excel, email, etc)?

2) If an application is constantly reading/writing from text files can that somehow be a detriment to the user if they are doing day to day work? I want the app to read/write text files, but I don’t want it to somehow interfere with something else the person is doing since this app will be more of a “run in the background check it when I need to” app.

3) Is there a way to quantify how taxing a certain block of code, variable storage, or data storage will be to the end user? What is acceptable?

4) I have several list(of t) that I use as “global” lists where I can hit them from any window in my application to display data. Is there a way to quantify how much memory these lists take up? The lists range from lists of integers to lists of variables with dozens of properties. Can I somehow quantify how taxing this is on the app or the end user?

Thank you for any help and I will continue to search for articles to answer my questions

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1 Answer

  1. Editorial Team

    IF you really want/need to get into the details of memory usage of an application you should use a memory profiler:

    Your other questions are hard to answer since all relevant aspects are rather unknown:

    • what DB is used ?
    • how powerful is the machine running the DB server ?
    • how many users ?

    etc.

    On some things a performance profiler can help – for example the above mentioned memory profilers (esp. from RedGate / JetBrains etc.) usually are available in a packaged together with a performance profiler…

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