Re: library cache miss ratio very high - how to find out the rot cause
Date: Tue, 22 Apr 2008 10:24:07 -0700 (PDT)
On Apr 22, 1:28 am, Frank Zimmer <frank.zim..._at_euroscript.lu> wrote:
> we are driving a Documentum based ECM system on a big sun machine (12
> CPU) (i know that Documentum is creating very bad SQL)
> Right now sometimes (quite often) the system is totally slow.
> With some monitoring we can see that at that point the miss ratio
> for the sql library cache goes over 60 %.
> At that time the shared SQL area of the SGA is used only by 60 % and
> the parse to execute ratio is nearly one.
> How can i get deeper into that ?
> Best regards
Just out of curiosity I put the following query into google: documentum oracle queries
I notice a couple of informative links, seems this Robin East fellow knows some things, including SQL profiles and getting sets results.
-- @home.com is bogus. Oracle v. SAP: http://www.itbusiness.ca/it/client/en/home/news.asp?id=48054Received on Tue Apr 22 2008 - 12:24:07 CDT