Thanks for that tip. I will keep an eye out for that when we begin our SSL 
performance testing. Currently, however, the delay is with regular http 
connections directly to haproxy.

David

Wout Mertens <wout.mert...@gmail.com> wrote:

>On Nov 11, 2011, at 17:43 , David Prothero wrote:
>
>> The local test showed a very small (and more than acceptable) overhead of 
>> 7ms for the entire page load (all 29 requests) when going through HAProxy. 
>> However, tests from longer distances over various IP’s showed an overhead 
>> that seemed to be proportional to the amount of latency in the connection. 
>> Typical overhead times we are seeing from various locations (both from 
>> enterprise and consumer grade connections) are around 200-400ms.
>> 
>
>Delay values of multiples of 200ms are due to the Nagle algorithm. Try adding
>
>socket=l:TCP_NODELAY=1
>socket=r:TCP_NODELAY=1
>
>to your stunnel configuration.
>
>Wout.

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