Jason,

> I think what is happening is the way it is streamed into the
> buffer requires
> that the memory it sits in be extended one chunk at a time. I
> need to figure
> out a way to allow the streaming to preallocate all the
> memory it needs so
> that it doesn't have to grow it in the increments.
>
> HTH,

I think that would help Jason. Do you think it is something that you will be
able to address in the near future?

Thanks for your help,

Brian

> Jason Wharton
> CPS - Mesa AZ
> http://www.ibobjects.com
>
>
> ----- Original Message -----
> From: "Brian Dunstan" <bdunstan@...>
> To: <ibobjects@yahoogroups.com>
> Sent: Monday, April 02, 2001 10:11 PM
> Subject: [IBO] Large Blob Insertion
>
>
> > Hi,
> >
> > I am inserting blobs of about 2.5 MB an finding it VERY slow, in the
> > vicinity of 3 minutes per blob. The funny thing is it seems
> to be the
> client
> > that is slowing the process.
> >
> > When I post the blob the client cpu utilization goes to
> about 100% for
> about
> > 3 minutes while the network remains largely inactive (I
> have separate
> client
> > and server computers).
> >
> > It appears that most of the time is being spent in a
> procedure called
> > IB_ReallocMem in unit IB_Parse. Each time through it is increasing a
> memory
> > allocation by 4095 bytes all the way up to 11,629,632 bytes
> which is over
> > 2,800 iterations (nearly 4 times the size of the blob).
> After that is done
> > then the network and the server get busy and after a
> further delay the
> post
> > is complete.
> >
> > I have played around with various blob segment sizes and
> not found any
> > dramatic differences. I am currently testing with the
> maximum of 32,767
> > bytes.
> >
> > Another funny thing is that IB Monitor is reporting a
> segment size of
> 65535.
> >
> > I am using a IBO 3.6Cf and IB 6.01. The components I am using are:
> > TIBODatabase, TIBOQuery with RequestLive, TDataSource and a
> TwwDBRichEdit.
> I
> > am using the TwwDBRichEdit to insert a OLE BMP object into
> a RTF document.
> >
> > My workstation is Win 2000 SP1 with 256 MB and my server is
> NT 4 SP 6.
> >
> > Am I doing something obviously wrong here, or is there some
> parameter I
> > should be tweaking to get dramatically better performance?
> >
> > Are there any native IBO controls that will allow my users
> to edit RTF and
> > insert OLE objects into them with reasonable performance.
> >
> > Thanks in advance for your thoughts.
> >
> > Brian
>
>
>
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