Re: PostgreSQL on SMP Architectures

From: Boszormenyi Zoltan
Subject: Re: PostgreSQL on SMP Architectures
Date: ,
Msg-id: 4B78497A.7070606@cybertec.at
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In response to: Re: PostgreSQL on SMP Architectures  (Reydan Cankur)
List: pgsql-performance

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PostgreSQL on SMP Architectures  (Reydan Cankur, )
 Re: PostgreSQL on SMP Architectures  (Arjen van der Meijden, )
 Re: PostgreSQL on SMP Architectures  (Scott Marlowe, )
  Re: PostgreSQL on SMP Architectures  (Reydan Cankur, )
   Re: PostgreSQL on SMP Architectures  (Boszormenyi Zoltan, )
 Re: PostgreSQL on SMP Architectures  ("Kevin Grittner", )

Reydan Cankur írta:
> I want to do the second. I want to spread out the workload on all
> cores. But also I want to set the core number; for example first I
> want to spread out the workload to 32 cores then 64 cores and see the
> scalability.

You can use taskset(1) or schedtool(8) to set the CPU affinity
of the postmaster. New backends inherit the setting.

> On Feb 14, 2010, at 8:25 PM, Scott Marlowe wrote:
>
>> With all that info, your question is still kind of vague.  Do you want
>> to be able to run a single query across all 64 cores?  Or do you have
>> 1,000 users and you want them to be spread out on all cores.
>> PostgreSQL can do the second but has no native features to do the
>> first.
>
>


--
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than these cometh of evil." (Matthew 5:37) - basics of digital technology.
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----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
http://www.postgresql.at/



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