Hi Pablo,

Sorry but your issue lack a lot of information:

   - OrientDB Version
   - Are you measuring with studio? If yes, please consider the rendering
   time. In case use EXPLAIN <YOUR-QUERY> to have the real execution time
   - How many UserTrace instances? And how many linked instances?
   - What kind of HW/SW configuration are you using?


Best Regards,

Luca Garulli
Founder & CEO
OrientDB <http://orientdb.com/>


On 8 June 2016 at 22:10, pabloa <[email protected]> wrote:

> Hello
>
> I have a class *UserTrace* with a property *trace* of type *LinkedList*.
> Property *trace* is a list of other classes.
> I have several thousand documents stored in that class on a remote server.
>
> When we send from Java a query like:
>
>
> *select from UserTrace fetchplan *:-1*
>
> We get the list back but performance is bad (around 1000 documents by
> second).
>
> I added *fetchplan *:-1* so the answer is a list of all documents with
> all the properties and subdocuments fetched all together. And still we get
> results at 1000 docs/second
>
> Is it possible to improve performance?
>
> It seems to us that each element of *userTrace*.*trace* list is *being
> recovered again from the database*. Is that possible? Should "fetchplan
> *:-1" return each entry in trace list fully exploded?
>
> This is the content of 1 document in *UserTrace* table.
>
>
> <https://lh3.googleusercontent.com/-cxiIv0LkOcY/V09rJHdZh1I/AAAAAAAAEaM/bpYAbktpVScpHj4f2WhnEYS6em073wfBACLcB/s1600/Screenshot%2Bfrom%2B2016-06-01%2B16%253A06%253A18.png>
>
>
> Any help will be welcome.
>
> Pablo
>
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