WPF GUI Performance with a large number of parallel tasks

Question

I developed a small client (WPF) to make some stress test on our systems. Essentially it has to call various methods on an Asp.Net WebApi endpoint in parallel.

Each time

Answer 1

how can I address the problem to make everything work on a single GUI?

Send API requests in "proper" async-await manner with only one thread.

private async Task SendStressRequests()
{
    var tasks = new List();
    for (int i = 0; i < 4000; i++)
    {
        var task = SendApiRequestAsync();
        tasks.Add(task);
    }

    await Task.WhenAll(tasks);
    // Update UI with results
}