Why shared_buffers max is 8GB?

From: Alexey Vasiliev
Subject: Why shared_buffers max is 8GB?
Date: ,
Msg-id: 1395836511.796897979@f327.i.mail.ru
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Responses: Re: Why shared_buffers max is 8GB?  (Ilya Kosmodemiansky)
Re: Why shared_buffers max is 8GB?  (Alexey Klyukin)
List: pgsql-performance

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Why shared_buffers max is 8GB?  (Alexey Vasiliev, )
 Re: Why shared_buffers max is 8GB?  (Ilya Kosmodemiansky, )
  Re: Why shared_buffers max is 8GB?  (desmodemone, )
   Re: Why shared_buffers max is 8GB?  (Albe Laurenz, )
    Re: Why shared_buffers max is 8GB?  (desmodemone, )
   Re: Why shared_buffers max is 8GB?  (Markella Skempri, )
    Re: Why shared_buffers max is 8GB?  (Martin French, )
     Re: Why shared_buffers max is 8GB?  (Markella Skempri, )
      Re: Why shared_buffers max is 8GB?  (Martin French, )
    Re: Why shared_buffers max is 8GB?  (Scott Marlowe, )
     Re: Why shared_buffers max is 8GB?  (Shaun Thomas, )
      Re: Why shared_buffers max is 8GB?  (Ilya Kosmodemiansky, )
   Re: Why shared_buffers max is 8GB?  (Martin French, )
 Re: Why shared_buffers max is 8GB?  (Alexey Klyukin, )
  Re: Why shared_buffers max is 8GB?  (Bruce Momjian, )

I read from several sources, what maximum shared_buffers is 8GB.

Does this true? If yes, why exactly this number is maximum number of shared_buffers for good performance (on Linux 64-bits)?

Thanks!


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From: Ilya Kosmodemiansky
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Subject: Re: Why shared_buffers max is 8GB?
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