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From:Matthew Boehm Date:February 24 2010 2:45pm
Subject:RE: how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?
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Does hyperthreading have any bearing on this parameter? I have dual
quad-core cpus, and with HT, linux sees 16 processors.

My MaxNoOfExecutionThreads is currently 8, but would 16 work as well?

-Matthew

> -----Original Message-----
> From: Andrew.Hutchings@stripped [mailto:Andrew.Hutchings@stripped]
> Sent: Wednesday, February 24, 2010 6:00 AM
> To: Peter Chen
> Cc: cluster@stripped
> Subject: Re: how to set the parameter "MaxNoOfExecutionThreads"? 1 or
> 2?
> 
> Hello Peter,
> 
> On Wed, 2010-02-24 at 17:48 +0800, Peter Chen wrote:
> > The data node is deployed on solaris 10 system, and there are two
> CPUs
> > in the server. But each CPU has only one core.
> > Here each CPU has only one core, then should I set the parameter
> > "MaxNoOfExecutionThreads" to 1?
> >
> > Or just use the default value 2?
> 
> If you have nothing else running on each server then
> MaxNoOfExecutionThreads should be 2 in this case.  It means total
cores
> in the system.
> 
> Kind Regards
> --
> Andrew Hutchings, MySQL Support Engineer, Americas
> Sun Microsystems, United Kingdom
> http://www.sun.com/mysql/
> 
> 
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Thread
how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?Peter Chen24 Feb
  • Re: how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?Andrew Hutchings24 Feb
    • RE: how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?Matthew Boehm24 Feb
      • RE: how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?Andrew Hutchings24 Feb
        • RE: how to set the parameter "MaxNoOfExecutionThreads"? 1 or 2?Andrew Hutchings24 Feb