Hi,

I also have some big performance issues with my application based on
Tapestry 3.0.3.

1st one, when there is a high load, one can see that the dns time is blowing
up. Does de 3.0.3 version have the problem as describe below? From which
version does it no longer occur?

2nd one, the application is creating too much object and it seems that the
old memory is not cleaned up fast enough.
Does persistence trigger the creation of a lot of objects? Is there any
related performance issue?
Is Tapestry 4.0 doing better?

Here is my configuration:
5 server Tomcat 5.5 with jvm of 1.6Gb, xeon 19,2 GHZ, 1.7Millon hits, 55
req/s
Applications based on Tapestry and hibernate.
I attached samples of the page and components used in the application.

Thanks for any help in advance,

Yves




-----Message d'origine-----
De : Howard Lewis Ship [mailto:[EMAIL PROTECTED]
Envoyé : samedi 10 septembre 2005 00:02
À : Tapestry users; [EMAIL PROTECTED]
Objet : Re: Performance problem : simple tapestry page takes long time
to show up


Earlier Tapestry (maybe 3.x, certainly 2.x) did trigger a reverse DNS
by logging the client's hostname.  That no longer occurs (or at least,
it should not).

On 9/9/05, Henri Dupre <[EMAIL PROTECTED]> wrote:
> On 9/4/05, Manoj Prakash <[EMAIL PROTECTED]> wrote:
> > Yes, I haven't disabled caching.
> >
> > In our tests, we have seen tapestry doing pretty well if client is on
> > same network as server.
> >
> > We start to see the perf issue when:
> > 1. clients are on a separate network than the server, and in such cases;
> > tapestry/tomcat log indeed says that it is taking as much time.
>
> That sounds like a DNS issue. Maybe something in the application or in
> tomcat is doing a reverse dns resolution which can be long?
>
> Henri.
>
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--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator, Jakarta Tapestry
Creator, Jakarta HiveMind

Professional Tapestry training, mentoring, support
and project work.  http://howardlewisship.com

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