Re: Installed new ram -- recieved worse performance

Hi,
when you added memory, did you adjust your swap and init.ora settings? And, by the way, limitations for memory per process in kernel?

Oracle needs swap = 2*ram; it makes 6Gb in your case. As for 1.5 hour... Probably, that was a time for Solaris to make up with the swap you have got from previous "memory incarnation" :).

Good luck. Please let us know the result.

sam_tyler_at_my-deja.com wrote in message <826i5q$ocp$1_at_nnrp1.deja.com>...
>We have a ES450 server and tried to install 3Gb of new RAM into the
>system. Immediately after adding the memory and reconfiguring the OS
>and Oracle, we received extremely poor performance.
>
>Because we needed known performance, we took out the new RAM and put in
>the old RAM. Now here's the clincher -- we had the same performance
>problem for about an hour and a half.
>
>Now, here's the question. If we put the new RAM in and let it chug for
>an hour and a half, are we going to see a marked performance increase?
>Why does it take an hour and a half before that happens?
>
>We're in the middle of a legacy system conversion into Oracle. We have
>a deadline to convert 8,000,000 rows - we could use the extra time to
>ensure a working system. Basically, I have to assure management that
>we are not going to suffer any more delays and that the cost of doing
>this will pay off.
>
>
>Sent via Deja.com http://www.deja.com/
>Before you buy.
Received on Fri Dec 03 1999 - 01:34:21 CST