Gateway Determination and Delay

[Lafras]

When I analyze the actual performance statistics of a session I
usually see a figure like 2250ms for Gateway Determination. Exactly
what does this mean? Is it the time it takes for the web browser to
locate the default gateway or is it the time that Fiddler took to
relay, analize and display the session traffic.

Finally what is the DELAY column that you may add to the display - it
shows REQUEST\RESPONSE time in the Help. What does that actually mean
when you are looking at latency and the time web servers took to
process a request.

Thank you in advance.

Lafras

[EricLaw]

I don't know what "Delay" column you're referring to.

"Gateway Determination" is the amount of time required to detect what
upstream proxy server should be used. If this is more than a few
milliseconds, chances are good that you have IE Configured to
automatically detect proxy settings (inside Tools / Internet Options /
Connections / LAN Settings) but there is no proxy available, so
Fiddler is forced to do this detection over and over and over.

The simplest fix is to click Tools / Fiddler Options / Connections,
and uncheck the "Chain to upstream proxy" option, then restart
Fiddler. The better fix is to untick the "Autodetect Proxy settings"
inside IE (when Fiddler isn't running) because this will improve IE's
performance even when Fiddler isn't running.

-Eric