zaphod.b
11th November 2014, 11:34
Hi all,
The QNetworkProxyFactory documentation warns that WPAD on Windows may be slow. However in my environment it is abysmally slow: 42 (how ironic regarding my nick!), sometimes 54 seconds until a GET http://www.google.com returns a result (unless it runs into an error like "host not found" etc.).
Referring to this discussion (https://bugreports.qt-project.org/browse/QTBUG-10106), I wonder if the timeout being a multiple of 6 seconds is accidental?
I don't really understand what's going on here, and would appreciate any explanation, enlightenment, workaround, solution, or even well-founded statement that performance cannot be improved on principle. Also I tried to simulate the setup with a browser (Firefox) in order to find out if they meet the same limitations, but didn't really succeed in getting deeper insight. I don't even know which questions I could ask my network administrator to narrow down the cause, apart maybe from asking which protocol they use to deliver the PAC file.
Can anyone numeralize a realistic minimal delay?
Any help very much appreciated! (Customers and project manager getting angry.)
The QNetworkProxyFactory documentation warns that WPAD on Windows may be slow. However in my environment it is abysmally slow: 42 (how ironic regarding my nick!), sometimes 54 seconds until a GET http://www.google.com returns a result (unless it runs into an error like "host not found" etc.).
Referring to this discussion (https://bugreports.qt-project.org/browse/QTBUG-10106), I wonder if the timeout being a multiple of 6 seconds is accidental?
I don't really understand what's going on here, and would appreciate any explanation, enlightenment, workaround, solution, or even well-founded statement that performance cannot be improved on principle. Also I tried to simulate the setup with a browser (Firefox) in order to find out if they meet the same limitations, but didn't really succeed in getting deeper insight. I don't even know which questions I could ask my network administrator to narrow down the cause, apart maybe from asking which protocol they use to deliver the PAC file.
Can anyone numeralize a realistic minimal delay?
Any help very much appreciated! (Customers and project manager getting angry.)