I copied the JPA stuff from the TomEE examples, so if it is not optimized, using the wrong state, scope, etc. then perhaps the example should be updated to reflect that. I will try what you recommend and post new times. The data is exactly the same size, so are you saying because the strings are not identical there may be a difference? Just trying to understand that perspective. I'll just roll both tests into one to use the same data.
On Tue, Jun 20, 2017 at 2:53 AM, Andy Gumbrecht <agumbre...@tomitribe.com> wrote: > So just at a super quick glance - Before we start to anything else. > > You should modify the code to use the same (identical) random data for both > tests. > Add hibernate.jdbc.batch_size = 25 to your persistence.xml properties > Never use @Stateful unless you really understand why you should, i.e. use > @Stateless for your JpaMovies > Use entityManager#find rather than a query > > Hope this is a quick insight, but I'd also be interested to see the results > on just these few changes. > > Andy. > > On 20 June 2017 at 05:31, Laird Nelson <ljnel...@gmail.com> wrote: > > > Have you sat down for a good long reading session with > > http://java-persistence-performance.blogspot.com/? I found that site > > invaluable. > > > > Best, > > Laird > > -- > > http://about.me/lairdnelson > > > > On Mon, Jun 19, 2017 at 8:22 PM sgjava <sgj...@gmail.com> wrote: > > > > > I just built a project to compare JPA+Hibernate to a DBUtils > > > implementation. > > > DBUtils is a lot faster by a large margin. Can anyone tell me if they > > have > > > tuned JPA to perform better? I used TomEE 7.0.4-SNAPSHOT. I could live > > with > > > maybe a 10% difference, but I'm talking about 10 to 10 times slower! > > > > > > https://github.com/sgjava/jpavsdbutils > > > > > > > > > > > > -- > > > View this message in context: > > > http://tomee-openejb.979440.n4.nabble.com/JPA-vs-DBUtils- > tp4681918.html > > > Sent from the TomEE Users mailing list archive at Nabble.com. > > > > > > > > > -- > Andy Gumbrecht > https://twitter.com/AndyGeeDe > http://www.tomitribe.com > -- Steven P. Goldsmith
