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From Aron Lurie <>
Subject Re: Speeding up commit
Date Tue, 14 Jun 2011 14:50:00 GMT

On 6/14/2011 10:47 AM, Rick Curtis wrote:
> What version of OpenJPA are you running?
> On Tue, Jun 14, 2011 at 9:45 AM, Aron Lurie<>wrote:
>> Hello,
>> I have a situation where I am trying to persist ~2500 objects all at once.
>> After the objects are persisted, the program ends, so there is no need for
>> any functionality after the objects have been persisted. I am just trying to
>> dump these objects to the DB as fast as possible.
>> Using Eclipse's TPTP profiler, I have timed the EntityManager.commit()
>> operation to take 586 seconds. Of that, cumulatively almost 455 seconds are
>> spent inside of ~2500 calls to StateManagerImpl.proxyFields(bool, bool).
>>  From the point that I start commit(), those 2nd class objects are not
>> mutated by my program, and I do not need to use any of these objects after
>> commit() finishes. From what I have read, it would seem that I have no need
>> for my objects to be proxied, and from my tests, it seems that removing
>> proxies would speed things up significantly. Am I missing something? Or is
>> there a way to turn off proxies? And if not, how can I speed up the proxying
>> operation?
>> Thanks,
>> Aron

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