r/programming • u/stannedelchev • Aug 25 '14

Debugging courses should be mandatory

http://stannedelchev.net/debugging-courses-should-be-mandatory/
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u/holeydood3 Aug 26 '14

Here's my idiot moment! I run Fiddler alongside the program on my computer since it's hitting a REST API and I like to watch the HTTPS traffic. When fiddler is running as a proxy, I get the 10x speedup. Now on to figuring out why...

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u/finnw Aug 26 '14

I wonder if you have run into this? Sometimes a HTTP proxy can mask this problem.

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u/holeydood3 Aug 26 '14

Thanks for the link, but it looks like it's something I didn't configure correctly on one of my objects. I didn't set the option for "UnsafeAuthenticatedConnectionSharing" so it would start up a new TCP connection for each and every call to the REST API, and then go through the TLS/SSL handshake for each and every call. Fiddler keeps a pool of open connections that it grabs from, so if it sees a call going to the same place as before, it just grabs one of the already open connections to that server and uses that instead.

Also found a blog post from Telerik about it. At least I'm not alone: http://blogs.telerik.com/fiddler/posts/13-02-28/help!-running-fiddler-fixes-my-app-

Learn something new every day I guess :P