So many questions.
The JVM is the same 1.8.0_65.
The server is the same and empty (nobody is working on it except me)
The network connection is the same (same cable, same client same browser) but 
different client exhibits a constant behaviour in 7 and a very variable 
behaviour in 8 (but on the same client is stable).
What do you mean with test setup ? I use my application as test.
No Apache in front, directly calling Tomcat.
Memory tuned ? no tuning at all raw, standard installations for both 7 and 8.
Tks
Tullio


> From: tom...@olafkock.de
> Subject: Re: Performance regression from 7 to 8
> To: users@tomcat.apache.org
> Date: Thu, 3 Mar 2016 14:24:54 +0100
> 
> Tullio,
> 
> just checking:
> * Have you isolated this to be a tomcat 7 vs 8 issue or could it also be
> a same-time change of the JVM? Network connection? Caching?
> * What's the test setup that you're using? Memory tuned? Apache in
> front? HTTP connector? AJP?
> 
> Olaf
> 
> Am 03.03.2016 um 12:06 schrieb Tullio Bettinazzi:
> > I've an application in which I write a page from a Buffered Stream directly 
> > to the Servlet output stream (more or less 300kb).
> >
> > In 7 it works perfectly (100ms).
> >
> > In 8 , depending from the network connection and mainly from the 
> > http client itself (the browser in the PC) the same operation takes from
> >  50ms to 4500 ms.
> >
> > On the same PC I find more or less the same time using Chrome and Firefox 
> > also changing network connections (wifi, lan, adsl).
> >
> > Could someone suggest a solution ?
> >
> > Tks
> > Tullio
> >                                       
> 
> 
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