From: Alex Ignatov <a.ignatov@postgrespro.ru>
To: Javier Muro <j_muro@hotmail.com>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Scalability to more than 64 cores With PG 9.4 and RHEL 7.1 Kernel 3.10
Date: Thu, 29 Oct 2015 16:46:39 +0300
Message-ID: <5632233F.4040806@postgrespro.ru> (raw)
In-Reply-To: <BAY180-W9077963D33D66CA74B4C34FF210@phx.gbl>
References: <BAY180-W9077963D33D66CA74B4C34FF210@phx.gbl>
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On 28.10.2015 8:04, Javier Muro wrote:
> Has PostgreSQL 9.4 official Support on a system with more than 64
> legitimate cores? ( 72 Cores , 4 CPUs Intel(R) Xeon(R) CPU E7-8890 )
>
>
>
> The work Robert Haas did to fix the CPU locking way back when showed
> significant improvements up to 64, but so far as I know.
>
>
> Thanks in Advance.
Hello Javier!
Our tests shows that PG 9.4 scales well up to 60 Intel cores. I.E
pgbech -S and DB on tmpfs gave us 700 000 tps. After 60 соres s_lock is
dominating in cpu usage%. 9.5 scales way better.
--
Alex Ignatov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
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To: pgsql-performance@postgresql.org
Cc: a.ignatov@postgrespro.ru, j_muro@hotmail.com
Subject: Re: Scalability to more than 64 cores With PG 9.4 and RHEL 7.1 Kernel 3.10
In-Reply-To: <5632233F.4040806@postgrespro.ru>
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