Re: Re: RE: [ADMIN] High memory usage [PATCH]
От | Michael Stephenson |
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Тема | Re: Re: RE: [ADMIN] High memory usage [PATCH] |
Дата | |
Msg-id | Pine.LNX.4.30.0106261727550.23283-100000@tirin.openworld.co.uk обсуждение исходный текст |
Ответ на | Re: Re: RE: [ADMIN] High memory usage [PATCH] (Gunnar Rønning <gunnar@polygnosis.com>) |
Список | pgsql-jdbc |
> I agree that the tests are pretty inconclusive. We need something that > simulates real usage better. What platform are you testing on Linux ? > If so with native threads or green threads ? Linux, I'm using native threads with the hot spot I'm using native threads, which as I said was performing pretty much identically in both cases. The non hot spot machine was using green threads which is where the difference in performance was measurable. > | I personally would advocate applying a patch similar to below to the > | current cvs source. > > This I don't understand, was your intention to remove thread safety with this > patch ? Looking at the way you introduce SimpleDateFormat as an instance > variable it seems so. Yeah, the patch is rubbish, I did it that way to remove the (comparitively expensive) ThreadLocal.get inside the setDate and SetTimeStamp, which is clearly stupid. Michael xxx
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