Re: Transaction commits VS Transaction commits (with parallel) VS query mean time

From: Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>
To: "Jamison, Kirk" <k(dot)jamison(at)jp(dot)fujitsu(dot)com>
Cc: Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Transaction commits VS Transaction commits (with parallel) VS query mean time
Date: 2019-03-19 07:51:15
Message-ID: CAJrrPGf7h+p81ZgCOGB=6Ukj9pWE8WY5wok4zYjtEpFsuca_MQ@mail.gmail.com
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On Tue, Mar 19, 2019 at 6:47 PM Jamison, Kirk <k(dot)jamison(at)jp(dot)fujitsu(dot)com>
wrote:

> Hi Hari-san,
>
>
>
> On Sunday, February 10, 2019 2:25 PM (GMT+9), Haribabu Kommi wrote:
>
> > I try to fix it by adding a check for parallel worker or not and based
> on it
>
> > count them into stats. Patch attached.
>
> >
>
> > With this patch, currently it doesn't count parallel worker
> transactions, and
>
> > rest of the stats like seqscan and etc are still get counted. IMO they
> still
>
> > may need to be counted as those stats represent the number of tuples
>
> > returned and etc.
>
> >
>
> > Comments?
>
>
>
> I took a look at your patch, and it’s pretty straightforward.
>
> However, currently the patch does not apply, so I reattached an updated one
>
> to keep the CFbot happy.
>
>
>
> The previous patch also had a missing header to detect parallel workers
>
> so I added that. --> #include "access/parallel.h"
>

Thanks for update and review krik.

Regards,
Haribabu Kommi
Fujitsu Australia

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