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Sharedata question on memory foot print

3 posts in DataWindow Last posting was on 2008-10-24 20:34:02.0Z
cfauvel Posted on 2008-10-24 17:27:12.0Z
From: "cfauvel" <CFauvel@yahoo.com>
Newsgroups: sybase.public.powerbuilder.datawindow
Subject: Sharedata question on memory foot print
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if you have a DW that is using Share Data to another DW, and the amount of
data retreived on the first DW is 100Mb will the total footprint of both DW
= 200MB? OR does PB interpret the two DWs differently when it sees that you
are using sharedata, and only take up 100MB of memory?

My guess is the former, in that 200mb of memory would be used, since each DW
has it's own buffers.

anybody know for sure?


"Jerry Siegel [TeamSybase]" <jNOsSPAMsiegel Posted on 2008-10-24 18:13:02.0Z
From: "Jerry Siegel [TeamSybase]" <jNOsSPAMsiegel@yahoo!.com>
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Subject: Re: Sharedata question on memory foot print
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My expectation is that the target DW's buffers would remain empty, as all DB
functions are redirected to the source DW. Unless someone from engineering
jumps in, the true answer would be one of the standards: try it and see <G>.

"cfauvel" <CFauvel@yahoo.com> wrote in message
news:49020570$1@forums-1-dub...
> if you have a DW that is using Share Data to another DW, and the amount of
> data retreived on the first DW is 100Mb will the total footprint of both
> DW = 200MB? OR does PB interpret the two DWs differently when it sees
> that you are using sharedata, and only take up 100MB of memory?
>
> My guess is the former, in that 200mb of memory would be used, since each
> DW has it's own buffers.
>
> anybody know for sure?
>


Philip Salgannik Posted on 2008-10-24 20:34:02.0Z
Reply-To: "Philip Salgannik" <PhilipSalgannik@work.com>
From: "Philip Salgannik" <PhilipSalgannik@work.com>
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Subject: Re: Sharedata question on memory foot print
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Yep, that's the whole point, they all look at the same buffer...

"Jerry Siegel [TeamSybase]" <jNOsSPAMsiegel@yahoo!.com> wrote in message
news:4902102e$1@forums-1-dub...
> My expectation is that the target DW's buffers would remain empty, as all
> DB functions are redirected to the source DW. Unless someone from
> engineering jumps in, the true answer would be one of the standards: try
> it and see <G>.
>
> "cfauvel" <CFauvel@yahoo.com> wrote in message
> news:49020570$1@forums-1-dub...
>> if you have a DW that is using Share Data to another DW, and the amount
>> of data retreived on the first DW is 100Mb will the total footprint of
>> both DW = 200MB? OR does PB interpret the two DWs differently when it
>> sees that you are using sharedata, and only take up 100MB of memory?
>>
>> My guess is the former, in that 200mb of memory would be used, since each
>> DW has it's own buffers.
>>
>> anybody know for sure?
>>
>
>