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AaronLauAaronLau 

Single Sign On (SSO) login time becomes longer

hi,
 
We've just implemented Single Sign On in our SFDC instance. We have an issue now that SFDC users take longer time to log in (load the homepage) than before when SSO was not enabled. Sometimes or most times, users take 1 - 2 seconds longer to log in; sometimes, users take up to 5 seconds longer to log in. In my opinion it's unavoidable that there is a time delay because SFDC calls our web service to authenticate users and calling a web service is time consuming. What I'm not sure is how long of this delay is ordinary and acceptable? 1 second, 2 second or even 5 seconds?
 
By the way, our web service does not do any time consuming task except calling the active directory.
 
thanks,
benjasikbenjasik
5 seconds sounds too long

can you log a case and we can help you investigate the performance
AaronLauAaronLau
thanks Benji, I logged a case, its number is: 01301996.
 
cheers