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Multi-user Performance issues
Message
From
17/06/2002 16:42:42
 
 
To
17/06/2002 15:16:10
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00669353
Message ID:
00669447
Views:
12
Hi Jim -
Thanks for the reply


You wrote:
I ASSuME that when you say "large data file sets" you mean large .DBF/.CDX tables.
Reply: Yes

You wrote:
What is/are the larger and more heavily used tables and what exact index TAGs are defined in each?
Reply: the tags are exactly as that of the index names

You wrote:
Do your WHERE/FOR etc. clauses have expressions coded that match the TAG declarations exactly, as required for Rushmore to operate?
Reply: Yes

You wrote:
Are the multi-users all using some 'proper' network/file-server OS, as opposed to WinXX peer-to-peer?
Reply: They are using Windows NT, each ws is one of the Windows OS


You wrote:
Does the application use lots of SQLs or LOCATEs or SCANs. If so, which?
Reply: Mainly Seek(alltrim(xxx)), as well as Locates (indexes have been switched off when doing locates), some do while, no scans

You wrote:
Are you deliberately locking records or are you leaving tht to VFP to handle?
Reply: Letting VFP handle it

You wrote:
What type of buffering/locking is in use in the application?
Reply: Optimistic record

I thought as much, when we run it here in our NT environment, it seems to process quite well, however, we do not have as many users as our user. Nor as many records. The largest record set of 888K

Thanks,

Larry
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