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RE: Ozone Doc Project - user doc
Eric,
This was taken from a message on the User list. Could you find a spot for
this in the user docs. I think this and schema evolution related questions
(serialVersionUID etc. etc. ) are two of the most FAQ. I have a Hello world
series of examples that build up from a very simple hello world thing into a
simple messaging system that might be good to use as tutorial material. I
needs some cleaning up but I use it internally when giving introductions to
Ozone database-server development.
Best regards,
Per
> hello,
>
> I have a small problem:
>
> I have a simple client-server program, which is doing 150 writes to the
> database, and this takes more or less 12 seconds...I guess I have done
> something wrong.
>
> Would someone point me to some good benchmarking code?
See the samples in $OZONE_HOME/samples. You may start with simple and then
check the OO1 benchmark sample.
You probably did your 150 "writes" (calling update methods I guess) from the
client code. Thus, each method call results in a roundtrip to the server and
a
complete transaction begin/prepare/commit cycle - which is probably not
intended and slow. Putting the 150 item loop into a method of a database
object
is the solution. It's much faster _and_ encloses the entire work in _one_
transaction.
This (very important) point isn't covered that much in the current docs. The
Ozone Doc Project is underway to change this. :)
Any news for the users list from the ODP crew?
Falko