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RE: Any exp with NTw/2 to 4 hamster wheels?

From: Henry Poras <Henry.Poras_at_ctp.com>
Date: Wed, 6 Dec 2000 21:18:38 -0500
Message-Id: <10702.123884@fatcity.com>


There was an interesting article (I believe it was on orapub) dealing with this phenomenon. If I remember correctly, the idea was that increasing one resource could decrease performance by shifting the existing bottleneck. For example, if the instance runs a mix of batch jobs and OLTP, with the batch being CPU bound, adding more CPU would allow better batch performance (bbp). The batch job might now bottleneck on IO, decreasing OLTP performance.

Henry

-----Original Message-----
From: Eric D. Pierce [mailto:PierceED_at_csus.edu] Sent: Wednesday, December 06, 2000 3:55 PM To: Multiple recipients of list ORACLE-L Subject: Re: Any exp with NTw/2 to 4 hamster wheels?

i think a better question is: "why *wouldn't* you see a performance increase?". you put more hamsters on more wheels, more things will spin around faster w/ greater torque, no? ep

On 6 Dec 2000, at 6:20, The Oracle DBA wrote:

> A client seems to be seeing now perf improv with adding 2 more
> procs to a 2 proc NT box. Anyone see a similar result? This is 805
> on NT 4.0 SP5.

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Author: Eric D. Pierce
  INET: PierceED_at_csus.edu

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Received on Wed Dec 06 2000 - 20:18:38 CST

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