Re: OpenWithServiceComponents 5 times slower for Oracle than for SQL Server?

From: Florin <>
Date: 28 Apr 2004 09:15:42 -0700
Message-ID: <>

"Jim Kennedy" <> wrote in message news:<B7Fjc.135$Rd4.61591_at_attbi_s51>...
> "Florin" <> wrote in message
> > Hi,
> >
> > I am experiencing some problems accessing an Oracle database through
> > OLE DB from an MTS application using OpenWithServiceComponents (which
> > is supposed to give me connection pooling).
> > When I connect to a SQL Server database it only takes 3.1 ms to open a
> > connection, while with Oracle it takes 15.5 ms (both DB's running on
> > the same machine).
> > Am I doing something wrong, am I missing something here?
> > I have tried to use the plain Open method, but in this case it takes
> > 5.4 ms with SQL Server and 31.4 ms with Oracle.
> > Is Oracle really that much slower when accessing it through OLE DB?
> >
> > Thanks for any advice/hints!
> > Florin
> What about subsequent times? Is the machine (server) swapping? MS
> SqlServer is known to take all the ram on the machine and that could do it.
> (try shuting down the instance and see if it makes a difference). It is
> hard to say since you are going through a lot of non-native stuff. So who
> knows what it is doing.
> Jim

What I did was to open and close the connection 1000 times and take the average response time for this operation. No DB queries were involved. I have 1 GB RAM, there is also no swapping involved. It just seems that the connection pooling is still much slower in Oracle than in SQL Server (about 5 times) and I would like to know why...

Florin Received on Wed Apr 28 2004 - 18:15:42 CEST

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