| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> RE: Job taking longer with more RAC nodes
This is an Oracle 11i application 11.5.9) and the database version is
9.2.0.6 (64-bit). The thing that is surprising me is that there are no
RAC specific waits. It is the CPU usage that is going high. I am sure
there is an explanation to this and that is what I am trying to find
out.
-----Original Message-----
From: john d parker [mailto:orclwzrd_at_yahoo.com]
Sent: Thursday, March 09, 2006 4:35 PM
To: Hameed, Amir; oracle-l_at_freelists.org; racdba-bounce_at_freelists.org
Subject: Re: Job taking longer with more RAC nodes
Do you have any degree of parallelism? or is parallel degree set to default?
In general, A well behaved app will perform approx the same on RAC maybe even marginally slower. A poorly behaved app will absolutely stink when moved to RAC. RAC is not a performance enhancing solution.
John
> Folks,
> I need some help in understanding why a job is taking longer when it
> is run in multiple nodes under RAC versus a single node in RAC and
> with RAC disabled.
-- http://www.freelists.org/webpage/oracle-lReceived on Thu Mar 09 2006 - 15:53:32 CST
 |
 |