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Re: Oracle issue with Ultrasparc CPU's

From: Zhu,Chao <zhuchao_at_gmail.com>
Date: Tue, 18 Jul 2006 17:53:51 -0700
Message-ID: <962cf44b0607181753h3a18d77due9faf39bf4b34262@mail.gmail.com>


Server downgrade with Identical storage could cause performance degrade too. I have seen case, when we upgrade from 880 2900, storage not changing, and a simple full table scan time reduced to half. It could due to just server bus faster, CPU speed is same for 880 and 2900 I think, 2900 was dual core, but my full scan job is not using parallel at all. You are doing the downgrade actually.

On 7/18/06, Paula Stankus <paulastankus_at_yahoo.com> wrote:
>
> We have just gone from a Sun 6900 to a Sun 1280, from 8 CPU's to 4 CPU's
> with 1.5 (versus 1) Ghz processing power . They are called Ultrasparcs.
> We are running both Oracle 8.1.7 and Oracle 10. Performance has degraded
> and it looks to me that the bottlenecks are I/O. However, I am hearing a
> rumour that Oracle 8.1.7 does not take advantage of the Ultrasparcs.
>
> Has anyone dealt with this issue and where is it documented?
>
> Thanks,
> Paula
>
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-- 
Regards
Zhu Chao
www.cnoug.org

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Received on Tue Jul 18 2006 - 19:53:51 CDT

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