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Re: jTDS, trashes heap wi

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From	"Lew" <lew@THRWHITE.remove-dii-this>
Subject	Re: jTDS, trashes heap wi
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  To: comp.lang.java.databases
Jan Burse wrote:
> Lew schrieb:
>> Do you have a million calls into the database in a short time, thus 
>> motivating 
>  > your optimization concerns?
> 
> I have approx. 1'000 DB calls per
> item. And I have ca.
> 6'000 items.

Interesting notation.  Where does it come from?

> The first version of the batch run
> around 8 hours. Now I am down to
> 1 1/2 hours.
> 
> I am now using a custom memory cache
> between the DB and the application.

Clearly you were I/O bound before, and memory allocation and GC were not the 
issue.

QED.

-- 
Lew

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jTDS, trashes heap with w "Jan Burse" <jan.burse@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
  Re: jTDS, trashes heap wi "=?ISO-8859-1?Q?Arne_Vajh=" <=?iso-8859-1?q?arne_vajh=@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
    Re: jTDS, trashes heap wi "Jan Burse" <jan.burse@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
      Re: jTDS, trashes heap wi "=?ISO-8859-1?Q?Arne_Vajh=" <=?iso-8859-1?q?arne_vajh=@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
  Re: jTDS, trashes heap wi "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
    Re: jTDS, trashes heap wi "Jan Burse" <jan.burse@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
      Re: jTDS, trashes heap wi "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
        Re: jTDS, trashes heap wi "Jan Burse" <jan.burse@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
          Re: jTDS, trashes heap wi "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
            Re: jTDS, trashes heap wi "Jan Burse" <jan.burse@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000
              Re: jTDS, trashes heap wi "Lew" <lew@THRWHITE.remove-dii-this> - 2011-04-27 15:21 +0000

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