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RE: Number of CPUs vs. Speed of CPUs

From: Kimberly Smith <ksmith2_at_myfirstlink.net>
Date: Thu, 18 Apr 2002 13:42:16 -0800
Message-ID: <F001.00448CB0.20020418134216@fatcity.com>


We just went through the license stuff. Its by CPU. They don't even know the speed of ours. Also, they never once asked us the capacity of our box. Course, tomorrow is a different day and most likely a different way to license.

-----Original Message-----
Beth
Sent: Thursday, April 18, 2002 2:20 PM
To: Multiple recipients of list ORACLE-L

I'm not positive, but I'm pretty sure you still pay by power units. a 4 x 200Mhz costs the same as a 1 x 800Mhz.

I agree to some extent, but fewer and faster should not be a hard and fast rule. There are other things to consider, like how many concurrent cpu intensive processes are running on the system. On a single cpu system, it only takes 1 bad query to hog the entire system, with 2 cpus, they can only suck up 50% of it at most...and can your application benefit from parallelism?

-----Original Message-----
Sent: Thursday, April 18, 2002 3:44 PM
To: Multiple recipients of list ORACLE-L

I may be blowing smoke out my back side but here is my opinion: Fewer and Faster

Reasons:

I think Oracle has started to license by cpu instead of the power units thing. So if it is cpu number, then fewer and faster is cheaper.

Oracle also "was" and may still be licensing based on maximum box capacity. So if you have 2 machines that are both 4 way (4 cpu's installed), but machine one max'es at a 4 way and the second machine max'es at a 10 way, you pay more for each license on the 10 way than the 4 way even thought the 10 way is using just 4 cpu's. Doesn't make much sense to me but that's how pricing worked last fall.

>From an OS level, when cpu's are added it's a diminishing return issue.
So historically a "4 x 800mhz" is faster than a "8 x 400mhz".

Brian P. MacLean
Oracle DBA, OCP8i  

                    YTTRI  Lisa

                    <lisa.yttri_at_cn       To:     Multiple recipients of
list ORACLE-L <ORACLE-L_at_fatcity.com>        
                    h.com>               cc:

                    Sent by:             Subject:     Number of CPUs vs.
Speed of CPUs                              
                    root_at_fatcity.c

                    om

 

 

                    04/18/02 08:58

                    AM

                    Please respond

                    to ORACLE-L

 

 


We are in the process of sizing a new server for multiple Oracle instances. What factors are useful as input in determining how many CPUs and the relative speed of them? For example, do we want fewer, faster CPUs or do we want more, slower CPUs? Are there any good guidelines to determine what the number of CPUs should be?

Thanks in advance -
Lisa

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Author: Seefelt, Beth
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Received on Thu Apr 18 2002 - 16:42:16 CDT

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