> 
> There is no need to turn on full wire logging, which is very noisy and
> expensive. Only context logging should be enough.
> 
> http://hc.apache.org/httpcomponents-client-4.0.1/logging.html
> 
> ...
> 

[[-KenBrooks-]] 
Understood.. yeah I would turn it on with only context logging.. I was just 
explaining why I had it completely off before. :)
I'm building the 4.1 trunk (so that it includes the illegal state fix) and I'll 
then run it with context logging and hopefully shoot that across here later 
today.

> > Are there interceptors (like the cookie interceptors) that I can
> disable for authentication & state management?
> > That would at least be a good test that circumventing client and going
> to core might make a difference.
> >

[[-KenBrooks-]] 
Browsing around I see that in 4.1 (instead of 4.0.X) there are a few more 
interceptors.. like RequestAuthCache.. 


> Most of the overhead is added by DefaultRequestDirector which cannot be
> easily removed. One possibility would be to use a simplified custom
> implementation of RequestDirector to execute requests with minimal
> overhead, but this would be hardly any different than using HttpCore
> directly.
> 
> Here's a simple benchmark which can be used to compare performance of
> HttpCore and HttpClient
> 
> http://wiki.apache.org/HttpComponents/HttpClient3vsHttpClient4vsHttpCore
> 

[[-KenBrooks-]] 
I ran across this over the weekend.. Mostly was focused on httpclient3 vs. 
httpclient4 because at first I wasn't sure if the overhead was a result of us 
upgrading from 3.1 to 4.0.1. Now that you mention possibly using HttpCore it 
sheds new light on those metrics.. 

Thanks again for all the helpful suggestions.. 

-k

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