RedHat 9 on Intel Dual Processors ??? and Tuning for Oracle 9i ?
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There's nothing special about tuning Oracle on a 2 processor box. Oracle will usually pick up the fact that you have multiple processors and use them to their fullest advantage.
As a note, Oracle is not supporting the 9i database on RH9, although it works. I believe only the AS and ES versions of RH are supported. If this is a production box, I would re-consider your OS choice.
What I was talking about was RH 9, but it applies also to Advanced Server. (I am preparing for RHCE). As for compiling the kernel, it is very easy if you follow the steps provided by redhat. I am now pointing towards this site --> http://linuxselfhelp.com/HOWTO/Kernel-HOWTO-2.html as I got it to google, but I have a very good tutorial in my home. Say if this is enough, or else I'll post that tonight or tommorow.
You can get very good tuning options if you compile the kernel from source, like turning on SMP support, selecting the processor type and fine tuning the configs, etc...
If you have any doubts, just post here and I will help you, as I have compiled kernels atleast 2 dozen times for custom systems, including one with SMP support.
I just did this exact same thing at work with the same hardware config. Had to prep a box to be used for serving the open source application Compiere.
The AS (in fact we tried all the enterprise OS's) simply recognized that the box was a dual processor and compiled in the SMP kernel on its own, we didn't have to interfere at all. In fact it set up GRUB with two boot options, one with SMP support and one without.
Oracle was more of tha Pain in the A$$... took more than a day to get running properly.