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Re: dbload and load

Posted By: FRANK
Date: Tuesday, 9 March 2010, at 1:40 p.m.

In Response To: Re: dbload and load (Obnoxio The Clown)

Another interesting result observation I like to share.

For a regular table and default configuration, We just change the number
of rows to be committed( a parameter of dbload) You can see the total
loading time changing. It is a curve. You may find the Point there.

Rows Time
=================================
5 rows 46 minutes 31 seconds
20 rows 26 minutes 7 seconds
40 row 23 minutes 15 seconds
100 rows 24 minutes 11 seconds
300 rows 22 minutes 53 seconds
650 rows 22 minutes 44 seconds
1250 rows 22 minutes 33 seconds
2500 rows 22 minutes 46 seconds
5000 rows 21 minutes 16 seconds
10000 rows 20 minutes 15 seconds
25000 rows 19 minutes 28 seconds
50000 rows 20 minutes 16 seconds
75000 rows 20 minutes 33 seconds
100000 rows 20 minutes 18 seconds
200000 rows 22 minutes 14 seconds
400000 rows 28 minutes 34 seconds
800000 rows 29 minutes 3 seconds
1600000 rows 39 minutes 35 seconds

Want to know what Fast Informix DBAs like to do?

Frank

On Tue, Mar 9, 2010 at 7:27 AM, Obnoxio The Clown
<obnoxio@serendipita.com>wrote:

> CHUAN LU wrote:
> > Hello,
> >
> > when a parnter loading a whole file into the table, they find the
> performance
> > of dbload is better than SQL load, who know the internal reason? Any
> reply
> > will be appreciated.
>
> If you are committing dbload every couple of thousand rows, the
> transaction logging is much more efficient. SQL LOAD doesn't offer the
> option. You probably won't see it on small tables.
>
> --
> Cheers,
> Obnoxio The Clown
>
> http://obotheclown.blogspot.com
> I will now proceed to pleasure myself with this fish.
>
> --
> This message has been scanned for viruses and
> dangerous content by OpenProtect(http://www.openprotect.com), and is
> believed to be clean.
>
>
>
> *******************************************************************************
> Forum Note: Use "Reply" to post a response in the discussion forum.
>
>

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