Re: [HACKERS] Parallel Select query performance and shared buffers

From: Metin Doslu <metin(at)citusdata(dot)com>
To: Claudio Freire <klaussfreire(at)gmail(dot)com>
Cc: Andres Freund <andres(at)2ndquadrant(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: [HACKERS] Parallel Select query performance and shared buffers
Date: 2013-12-04 18:03:26
Message-ID: CAL1dPcf7GViNuLztkBVgBjgkwKcQU+asbYXos612wiTTCiJY6g@mail.gmail.com
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> You could try HVM. I've noticed it fare better under heavy CPU load,
> and it's not fully-HVM (it still uses paravirtualized network and
> I/O).

I already tried with HVM (cc2.8xlarge instance on Amazon EC2) and observed
same problem.

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