Re: Speed up Clog Access by increasing CLOG buffers

From: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>
To: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Speed up Clog Access by increasing CLOG buffers
Date: 2016-09-05 08:30:24
Message-ID: CABOikdM_N7i38j5ErwVxP=siD2nhvsWMN=GA43Li+dj_vDnP_w@mail.gmail.com
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On Mon, Sep 5, 2016 at 3:18 AM, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>
wrote:

> Hi,
>
> This thread started a year ago, different people contributed various
> patches, some of which already got committed. Can someone please post a
> summary of this thread, so that it's a bit more clear what needs
> review/testing, what are the main open questions and so on?
>
> I'm interested in doing some tests on the hardware I have available, but
> I'm not willing spending my time untangling the discussion.
>
>
I signed up for reviewing this patch. But as Amit explained later, there
are two different and independent implementations to solve the problem.
Since Tomas has volunteered to do some benchmarking, I guess I should wait
for the results because that might influence which approach we choose.

Does that sound correct? Or do we already know which implementation is more
likely to be pursued, in which case I can start reviewing that patch.

Thanks,
Pavan

--
Pavan Deolasee http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

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