I'll see what I can do, after filing my generally hated Tax return :)

Actual data isn't required, just some test on a bunch of
nonsense blobs ever increasing in size.

I'll assume for the moment that V4.8.10 is the
better one to use for d5-d2008

Best Regards
Hans

----- Original Message -----
From: "Geoff Worboys" <geoff@...>
To: <IBObjects@yahoogroups.com>
Sent: Wednesday, March 24, 2010 11:00 PM
Subject: Re: [IBO] development


> Hans wrote:
>> Applying the same TIB_ColumnBlob.LoadFromBlob to version
>> V4.9.9 the TDataPump is about 4 times slower than that
>> same change to version V4.8.10
>
>> I guess changes between the versions drastically affected
>> the TDataPump performance
>
> You are compiling under Delphi 5... yes?
>
> I cannot say that I have studied the DataPump code but as far
> as the core components go I did not see anything that should
> adversely effect older AnsiString based Delphi. [[ I am far
> from convinced that v4.9.9 is a good idea for D2009+ (it is
> likely to force a LOT of redundant string conversion) but for
> old Delphi I did not see major concerns. ]]
>
> I would be good if you could double-check... it would be even
> better if you could try using that command-line application
> to transfer just the LOGOS or MUDCOMPANIES tables. There is
> a lot less clutter than with your full MaintArcs application
> and the separation of prepare and transfer times may prove
> useful information. (Besides which the command line apps
> can be rebuilt with any version of IBO without having to
> install that version - just point it's search directory to
> the version you want... and on top of that we may want to
> add other analysis features to that app to see if we can find
> the cause of this problem too.)
>
> --
> Geoff Worboys
> Telesis Computing
>
>
>
> ------------------------------------
>
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