>
>
>>
>>
>> Dyego Souza Dantas Leal escreveu:
>>
>>> Hello GlassFish guys !!!
>>>
>>> GlassFishVersion : v2 b08
>>>
>>>
>>> I have a problem... i write a JEE 5 Application with SessionBeans
>>> and client Swing...
>>>
>>> i run this query in my sessionbean
>>>
>>>
>>> em.createQuery("select m from MyEntity m").getResultList();
>>>
>>> This query return's 292 entitys in 95 ms (good time...)
>>>
>>> BUT , in the client...(swing) this query returns in 795ms ....
>>>
>>> 700ms for serialization ? is a bad time...
>>>
>>> exists way to optimize it ?
>>>
>>>
The serialized object graph of the entire set of entity query results
returned from the remote ejb call is likely much larger than the raw
data sent from the database to the server during query execution. That
could certainly account for the difference. Tuning the RMI-IIOP path
is one approach but the bottom line is that sending a large number of
serialized objects over a remote call can be expensive. You might want
to investigate ways to redesign your Swing client to request a smaller
amount of data at a time, either by requesting a subset of the query
results(e.g. Query.setFirstResult/setMaxResults) or by only returning a
portion of the data in each entity. Persistence team, any suggestions
here?
>
>
> Certainly we would expect some remote overhead, but this seems excessive.
>
> Ken.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe_at_glassfish.dev.java.net
> For additional commands, e-mail: dev-help_at_glassfish.dev.java.net
>