Re: [HACKERS] Moving relation extension locks out of heavyweight lock manager

From: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
To: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Masahiko Sawada <masahiko(dot)sawada(at)2ndquadrant(dot)com>
Subject: Re: [HACKERS] Moving relation extension locks out of heavyweight lock manager
Date: 2020-02-11 02:31:34
Message-ID: CAA4eK1JMgUfiTdAgr9k3nA4cdKvvruousKBg7FWTDNzQgBpOZA@mail.gmail.com
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On Wed, Feb 5, 2020 at 12:07 PM Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> wrote:
>
>
> Unfortunately the environment I used for performance verification is
> no longer available.
>
> I agree to run this test in a different environment. I've attached the
> rebased version patch. I'm measuring the performance with/without
> patch, so will share the results.
>

Did you get a chance to run these tests? Lately, Mahendra has done a
lot of performance testing of this patch and shared his results. I
don't see much downside with the patch, rather there is a performance
increase of 3-9% in various scenarios.

--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com

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