[TYPO3-performance] Spreading HTTP request among multiple hostnames

Dan Osipov dosipov at phillyburbs.com
Thu Jun 11 17:34:44 CEST 2009


Too bad we can't tell clients what to do ;)

Dan Osipov
Calkins Media
http://danosipov.com/blog/

Oliver Klee wrote:
> Hi,
> 
> Dan Osipov schrieb:
>> I think that's changing, with newer browsers downloading four components
>>  in parallel.
> 
> in my Firefox' about:config, I see the following default values:
> 
> network.http.max-connections 30
> network.http.max-connections-per-server 15
> network.http.max-persistent-connections-per-proxy 8
> network.http.max-persistent-connections-per-server 6
> 
> network.http.pipelining false
> network.http.pipelining.maxrequests 4
> network.http.pipelining.ssl false
> network.http.proxy.pipelining false
> 
> 
> On the client side, setting pipelining to true will probably give a nice
> speed boost without increasing server load. (Pipelining means that
> several HTTP requests are sent via one persistent connection instead of
> opening and closing a new connection for each request. This benefits
> from the TCP speed regulation mechanisms like slow-start, multiplicative
> decrease, etc., meaning that new connections are slow first and then
> gradually become faster until they reach the limit where packet loss
> occurs).
> 
> 
> Oliver


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