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Date: Fri, 7 Dec 2007 10:16:26 -0600 (CST)
Subject: Re: Any issues with Sun Coothreads Servers?
From: "Keith Moore" <kmoore@zephyrus.com>
To: jeffthomas24@gmail.com
Cc: tanel.poder.003@mail.ee, avramil@concentric.net,
 oracle-l@freelists.org
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I don't see enough information in the benchmark to draw any conclusions, but
this quote is the key issue: "Are 32 slow threads quick enough to beat two or
four fast cores?"

For some applications, such as a single non-parallel operation, the answer is
obviously no. Where the Coolthreads technology could be as fast or faster is
for highly parallel operations. Either a highly parallel batch job (as Tanel
mentioned) or an OLTP database with many transactions of short duration (think
call center operators pulling customer records). I haven't seen any good
benchmarks for that type of application.

Keith

> How does this forebode for our plans to purchase a pair of T5120s for a 10g
> RAC environment?
>
> Thanks,
> Jeff
>
>
> On Dec 6, 2007 9:56 PM, Tanel Poder <tanel.poder.003@mail.ee> wrote:
>
>> Hi,
>>
>> This link below is not from an Oracle benchmark, but still a database
>> one...
>> unless you have many parallel threads of work running (nightly batch jobs
>> for example), the CPU peformance can suck...
>>
>>
>> http://tweakers.net/reviews/649/8/database-test-sun-ultrasparc-t1-vs-amd-opt
>> eron-pagina-8.html
>>
>> --
>> Regards,
>> Tanel Poder
>> http://blog.tanelpoder.com
>>
>>
>> > -----Original Message-----
>> > From: oracle-l-bounce@freelists.org
>> > [mailto:oracle-l-bounce@freelists.org] On Behalf Of Lou Avrami
>> > Sent: Friday, December 07, 2007 04:48
>> > To: oracle-l@freelists.org
>> > Subject: Any issues with Sun Coothreads Servers?
>> >
>> > Hi all,
>> >
>> > The organization where I am working needs to buy some Sun
>> > Sparc servers for a new project.  Some of the server models
>> > are consideration are the T2000, the T5120 and the T5220.
>> > They have requested that I ask if anyone has had any negative
>> > experiences with Sun's multi-core, multithreaded CoolThreads
>> > servers running Oracle.
>> >
>> > Any feedback, good or bad, would be appreciated.
>> >
>> > Thanks,
>> > Lou Avrami
>> > --
>> > http://www.freelists.org/webpage/oracle-l
>> >
>> >
>>
>> --
>> http://www.freelists.org/webpage/oracle-l
>>
>>
>>
>


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