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Poor performance when you append data to a shared file-b
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
01308588
Message ID:
01308830
Vues:
20
>OK, yeah, I see that KB was rolled into SP2 now, but the DisableFlushOnCleanup was not automatically added to the registry so I manually made that change, but to no affect.

I think it is an invalid assumption that the final fix in SP2 "required" the registry change.
In fact I'd say there's a chance it could disrupt the SP2 fix.

Is there some reason you call it "a file-based database"?



>
>Here's my problem: I can run a sample insert/modify/select routine on a file-based database and it takes:
>1. 3 seconds for accessing database/tables via local hard drive, non-shared access
>2. 3 seconds for accessing database/tables via local hard drive, shared access (another computer has database/tables open, but no activity).
>3. 7 seconds for accessing database/tables over the network, but non-shared access (sounds about right)
>3. 35 seconds for accessing database/tables over the network, shared access (another computer has database/tables open, but no activity). What the hell???!!!
>
>Some stats:
>1. The total database is 150MB.
>2. 58 tables in the database.
>3. The largest table is 37MB.
>4. The simple routine is merely adding records, doing some seeks (using existing indexes), making some field changes, and then performing a SQL-Select. The insert/change section is wrapped in a BEGING TRANSACTION... END TRANSACTION, but again, the other workstation isn't doing anything, just has the database/tables open.
>
>
>Anyone have an idea what is going on?
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