Tony,

thank you for the tips. I'll test them as soon as possible.

I've a question. You said "the warning is not slowing down your code".
But it increases the response time of the page. So the user waits for
a longer time before receiving the page. Do you confirm?  Have I
correctly understood?

  fabrizio


On Dec 11, 9:07 am, Toby Reyelts <to...@google.com> wrote:
> Correlation is not causation. The warning is not slowing down your code.
>
> This harmless warning is generated during the static initialization of some
> protobuffer code. That static initialization is happening, because your
> application is being loaded in a new JVM by a loading
> request<http://code.google.com/appengine/kb/java.html#What_Is_A_Loading_Request>.
> We discussed performance implications of loading requests in a recent App
> Engine blog 
> post<http://googleappengine.blogspot.com/2009/12/request-performance-in-ja...>
> .
>
> If you're seeing long loading requests, please enable
> precompilation<http://code.google.com/appengine/kb/java.html#How_Is_Google_Improving...>
> as
> a first step. It's not a cure-all, but it typically provides a significant
> improvement.
>
>
>
> On Fri, Dec 11, 2009 at 2:46 AM, fhtino <fht...@gmail.com> wrote:
> > Yes. I'm quite sure.  A couple of examples.
>
> > A tipical request with normal execution time and without
> > FinalizableReferenceQueue
> > 12-10 10:40PM 32.484 /url....  200 83ms 160cpu_ms 85api_cpu_ms
>
> > A request with FinalizableReferenceQueue:
> > 12-10 10:36PM 22.306 /url.... 200 4888ms 7280cpu_ms 85api_cpu_ms
>
> >   fabrizio
>
> > On Dec 11, 6:17 am, Rusty Wright <rwright.li...@gmail.com> wrote:
> > > Are you sure the slowness is caused by whatever is generating this
> > exception?
>
> > > fhtino wrote:
> > > > Vince,
>
> > > > ok, it's harmless, but the response is very slow.  5000ms or more
> > > > instead of 200ms.
> > > > In my case it's a problem.
>
> > > > Any idea/solution?
>
> > > >      fabrizio
>
> > > > On Dec 5, 7:07 pm, Vince Bonfanti <vbonfa...@gmail.com> wrote:
> > > >> The exception is harmless. Add this to your logging.properties file to
> > hide
> > > >> it:
>
> > com.google.appengine.repackaged.com.google.common.base.FinalizableReference
> > Queue.level=WARNING
>
> > > >> There was previous discussion of this (search
> > > >> for FinalizableReferenceQueue).
>
> > > >> Vince
>
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