Re: Parallel Select query performance and shared buffers

From: Claudio Freire <klaussfreire(at)gmail(dot)com>
To: Merlin Moncure <mmoncure(at)gmail(dot)com>
Cc: Metin Doslu <metin(at)citusdata(dot)com>, postgres performance list <pgsql-performance(at)postgresql(dot)org>
Subject: Re: Parallel Select query performance and shared buffers
Date: 2013-12-10 20:06:11
Message-ID: CAGTBQpb4UhX+DRhET3LN34cgnXkcnpcuRUO8M6NmQ3_1o=omiw@mail.gmail.com
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On Tue, Dec 10, 2013 at 5:03 PM, Merlin Moncure <mmoncure(at)gmail(dot)com> wrote:
> Also, can I see a typical 'top' during poor scaling count(*) activity?
> In particular, what's sys cpu%. I'm guessing it's non trivial.

There was another thread, this seems like a mistaken double post or
something like that.

In that other thread, he did provide that, and it was ~40% sy.

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