Re: Oracle8 performance problems under NT

There was a flame about comparing ODBC with MS SQL and Oracle already. Use dejanews to search.
The problem was repeatedly connect/disconnect to Oracle with every query.
It's not necessary in real world.

On Thu, 22 Jun 2000 21:10:54 GMT, Michael Bialik <michael bialik_at_my-deja.com> wrote:

>Did you try using rule based optimizer?
>Is it possible to post 1-2 queries + EXPLAINm,index definition and
>some stats?
>
> Michael.
>
>
>In article <Uqu45.475$482.137897_at_den-news1.rmi.net>,
> "Josh Sale" <jsale_at_tril.com> wrote:
>> We have a mature mostly read-only application that runs on Windows
 clients.
>> It supports both SQL Server and Oracle as databases. We've had great
>> performance from Oracle8 on various UNIX platforms but have recently
 been
>> scratching our heads over poor performance on NT with 8.1.5.0.0.
>>
>> To give you an idea, we've extracted 55 queries that the application
>> performs. If we run those queries against Oracle, they take a little
 over 7
>> seconds to complete. When the exact same queries are run against the
>> identical database using SQL Server they complete in .7 seconds!
 Most of
>> the queries are simply single table queries although a few are joins.
>> Nothing to hairy.
>>
>> All of the tables have been fully analyzed. We aren't using any
 Hints. The
>> explain plans look OK. We've messed around with various init.ora
 parameters
>> without impacting anything. The client is connected to a lightly
 loaded
>> 100mb network.
>>
>> We've run a SQL trace and it shows the queries performing utilizing
 trivial
>> amounts of CPU time and zero I/O. Mostof the elapsed time is
 accounted for
>> as fetch time (even though none of the queries return more than a few
 rows).
>>
>> Has anybody encountered poor Oracle8 performance on NT?
>>
>> Has anybody encountered a problem collecting I/O statistics with SQL
 trace
>> on NT?
>>
>> TIA
>>
>> josh
>>
>>
>
>
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>Before you buy.

• Azamat Khalilov --- aza(a)aisdev*gns*bashnet*ru ---