RE: Apache HTTP before Tomcat

2009-04-23 Thread Peter Crowther
 From: Bart Ophelders [mailto:bartopheld...@hotmail.com]
 If I put an Apache HTTP server in front of Tomcat, will this
 influence performance?

Yes.

- Peter

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Re: Apache HTTP before Tomcat

2009-04-23 Thread Rainer Jung
On 23.04.2009 16:13, Bart Ophelders wrote:
 Hi, 
 
 If I put an Apache HTTP server in front of Tomcat, will this influence 
 performance?
 
 Thanks in advance!

Latency goes up somewhere in the two digit millisecond range. Whether
that matters depends on your use cases.

For real life applications performance is dominated by application code
and neighbouring systems (databases, mainframe etc.). Since Apache is
very scalable, in real life cases throughput will not change.

When doing tests, always make a distinction between latency (how long do
requests take) and throughput (how many requests per second are
possible), and keep your investigations focused on the non trivial part
(i.e. not measuring static content).

Finally: your total ressource usage (CPU, Memory) will increase
(Apache+Tomcat).

Regards,

Rainer

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Re: Apache HTTP before Tomcat

2009-04-23 Thread André Warnier

Peter Crowther wrote:

From: Bart Ophelders [mailto:bartopheld...@hotmail.com]
If I put an Apache HTTP server in front of Tomcat, will this
influence performance?


Yes.

:-)

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Re: Apache HTTP before Tomcat

2009-04-23 Thread David kerber

Bart Ophelders wrote:
Hi, 


If I put an Apache HTTP server in front of Tomcat, will this influence 
performance?
  

Yes, but probably not in the way you are expecting.

D

Thanks in advance!

Bart Ophelders

  




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