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 table download performance depending vs network
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Yak Posting Veteran

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Posted - 04/10/2010 :  16:54:06  Show Profile  Reply with Quote

I am using AdoDb/sqloledb in read-only to download a table of about 30k records from an sql server database.

At work the network is excellent (10 Mbps up, 10 Mbps down) and the download takes 4 seconds. (network tested on

At home, my connexion is not so bad in download (0.4 Mbps up, 3.0 Mbps down). Yet, the download of the table takes more than 80 seconds. I would have expected 12 seconds based on the network tests.

Do you think there is room to improve somehow the download performance when I am at home?
Or is there something wrong in my test?
If there is some hope from improvement, what would you suggest?



I do this download to an Excel 2003 sheet.
Using the Excel queries, is much slower, 50 seconds at work.
I tested already different options without results.
For example, I used the "CopyFromRecordset" method without changibg the performance as compared to a record-by-record VBA code.
I also modified the cachesize property of the recorset object without improvements.
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