Simulating modem slows down WCF calls unrealistically

1 posts, 0 answers
  1. Avrohom Yisroel
    Avrohom Yisroel avatar
    42 posts
    Member since:
    Jan 2011

    Posted 14 Feb 2017 Link to this post

    I'm developing some WCF web service calls, and want to test how the download times compare when using a modem connection.

    I started Fiddler and checked the Rules -> Performance -> Simulate Modem speeds option. I can see that this works, as if I refresh a web page, it's slower. I tried downloading some files of around 3-6Mb, and again I could see the difference. Normally these would be pretty instant, with the performance option on, they took a few seconds.

    I then tried to make my service calls. Without the Fiddler option, they typically take about 300-400ms to download about 1.5Mb. However, with the performance option on, the call takes about 40-60 seconds. This is way to slow to be realistic.

    This is all running on my local machine, using Visual Studio 2015.

    Anyone any idea why it's so slow?

Back to Top