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From: Jeff Janes <jeff.janes@gmail.com>
Date: Sun, 19 Jun 2016 09:55:16 -0700
Message-ID: 
 <CAMkU=1yskCDX8_t8SYu6TT_mE8cob3XWawzSQRxwiPYy2=105A@mail.gmail.com>
Subject: Re: Savepoint and Releasepoint in Logs
To: e.ratnakar.shetty@accenture.com
Cc: "pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>,
 daniel.machet@accenture.com
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On Fri, Jun 17, 2016 at 8:19 AM,  <e.ratnakar.shetty@accenture.com> wrote:
> Hi ,
>
> I am connecting to PostgreSQL 9.4 via an ODBC driver on Windows machine from
> MS VBA application. I am facing huge performance issues while inserting data
> continuously. On analysing the logs , there were around 90000 statements
> related to Save Points and Release Points.
>
>
>
> duration: 2.000 ms
>
> 2016-06-17 12:45:02 BST LOG:  statement: RELEASE _EXEC_SVP_1018CCF8
>
> 2016-06-17 12:45:02 BST LOG:  duration: 1.000 ms
>
> 2016-06-17 12:45:05 BST LOG:  statement: SAVEPOINT _EXEC_SVP_186EB5C8
>
> 2016-06-17 12:45:05 BST LOG:  duration: 0.000 ms
>
>
>
> I am guessing these statements are causing an overhead while inserting
> records in to the table.


The fact that there is 3 seconds between the release of one savepoint
the start of the next suggests that your client, not the server, is
the dominant bottleneck.

Cheers,

Jeff


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