Re: SendRowDescriptionMessage() is slow for queries with a lot of columns

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: tushar <tushar(dot)ahuja(at)enterprisedb(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SendRowDescriptionMessage() is slow for queries with a lot of columns
Date: 2017-09-29 17:03:18
Message-ID: CA+TgmobNQi1poda=Z2BWC9J3h+tONhfgcjXBzdBFwaNvZGjppw@mail.gmail.com
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On Fri, Sep 29, 2017 at 5:02 AM, tushar <tushar(dot)ahuja(at)enterprisedb(dot)com> wrote:
> Case 3- TIME=1000
>
> PG HEAD =>tps = 1061.031463 (excluding connections establishing)
> PG HEAD+patch => tps= 8011.784839(3.30+% vs. head)

Going from 1061 tps to 8011 tps is not a 3.3% gain. I assume you
garbled this output somehow.

Also note that you really mean +3.30% not 3.30+%.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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