RE: sga
Date: Fri, 12 Jun 2009 10:04:55 -0400
Message-ID: <6B3493ABEE194842A8EFC3FC3B23DE6A0E32214ACB_at_MSXMBCCR2.roswellpark.org>
Ok, my eyesight must be going because it is the library cache get hit ratio not library cache hit ratio. Do I look at something else?
ciao,
Brian
From: Andrew Kerber [mailto:andrew.kerber_at_gmail.com] Sent: Friday, June 12, 2009 9:30 AM
To: Mathias Magnusson
Cc: Zelli, Brian; oracle-l_at_freelists.org Subject: Re: sga
If the issue is lack of bind variables (too much dynamic sql), you can think about setting cursor_sharing=force, that solution has other problems however.
On Fri, Jun 12, 2009 at 8:26 AM, Mathias Magnusson <mathias.magnusson_at_gmail.com<mailto:mathias.magnusson_at_gmail.com>> wrote: Do you know that it causes a problem? What is your key wait event that this will address and how much do you spend waiting for it? Where do you find this ratio recommendation?
Mathias
On Fri, Jun 12, 2009 at 3:04 PM, Andrew Kerber <andrew.kerber_at_gmail.com<mailto:andrew.kerber_at_gmail.com>> wrote: Well, adding memory is an option. You should also look at your code. If you are not using bind variables, that can also cause the problem, and it is almost impossible to fix that problem just by adding memory.
On Fri, Jun 12, 2009 at 8:01 AM, Zelli, Brian <Brian.Zelli_at_roswellpark.org<mailto:Brian.Zelli_at_roswellpark.org>> wrote: Ok, so I have my sga tuned by the advisor in 10g but I have a library cache hit ratio constantly below the recommended threshold of 90%. How the heck do I tune it? Do I just increase the sga_target?
ciao,
Brian
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Received on Fri Jun 12 2009 - 09:04:55 CDT