Re: Patch: Write Amplification Reduction Method (WARM)

From: Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com>
To: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Bruce Momjian <bruce(at)momjian(dot)us>, Jaime Casanova <jaime(dot)casanova(at)2ndquadrant(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Patch: Write Amplification Reduction Method (WARM)
Date: 2017-03-22 19:17:30
Message-ID: CAD__Oujy42iocW7DXQH-78u8a2Yh5y801PSOh0D4t=ReuLQX5Q@mail.gmail.com
Views: Raw Message | Whole Thread | Download mbox
Thread:
Lists: pgsql-hackers

On Thu, Mar 23, 2017 at 12:19 AM, Pavan Deolasee
<pavan(dot)deolasee(at)gmail(dot)com> wrote:
>
>
> On Wed, Mar 22, 2017 at 4:53 PM, Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com>
> wrote:
> Ok, no problem. I did some tests on AWS i2.xlarge instance (4 vCPU, 30GB
> RAM, attached SSD) and results are shown below. But I think it is important
> to get independent validation from your side too, just to ensure I am not
> making any mistake in measurement. I've attached naively put together
> scripts which I used to run the benchmark. If you find them useful, please
> adjust the paths and run on your machine.

Looking at your postgresql.conf JFYI, I have synchronous_commit = off
but same is on with your run (for logged tables) and rest remains
same. Once I get the machine probably next morning, I will run same
tests on v19.
--
Thanks and Regards
Mithun C Y
EnterpriseDB: http://www.enterprisedb.com

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message David Steele 2017-03-22 19:24:58 Re: increasing the default WAL segment size
Previous Message Stephen Frost 2017-03-22 19:14:51 Re: PATCH: Make pg_stop_backup() archive wait optional