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Re: Performance Improvement by reducing WAL for Update Operation

Simon Riggs <simon@2ndquadrant.com>

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From: Simon Riggs <simon@2ndQuadrant.com>
To: Amit kapila <amit.kapila@huawei.com>
Cc: Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>, "hlinnakangas@vmware.com" <hlinnakangas@vmware.com>, "noah@leadboat.com" <noah@leadboat.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2013-01-09T11:26:51Z
Lists: pgsql-hackers 
On 9 January 2013 08:05, Amit kapila <amit.kapila@huawei.com> wrote:

> Update patch contains handling of below Comments

Thanks


> Test results with modified pgbench (1800 record size) on the latest patch:
>
> -Patch-             -tps@-c1-     -WAL@-c1-      -tps@-c2-      -WAL@-c2-
> Head                831           4.17 GB        1416           7.13 GB
> WAL modification    846           2.36 GB        1712           3.31 GB
>
> -Patch-             -tps@-c4-     -WAL@-c4-      -tps@-c8-      -WAL@-c8-
> Head                2196          11.01 GB       2758           13.88 GB
> WAL modification    3295           5.87 GB       5472            9.02 GB

And test results on normal pgbench?

-- 
 Simon Riggs                   http://www.2ndQuadrant.com/
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