Re: SUBTRANS: Minimizing calls to SubTransSetParent()

From: Julien Tachoires <julmon(at)gmail(dot)com>
To: Tomas Vondra <tomas(dot)vondra(at)enterprisedb(dot)com>
Cc: Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, Japin Li <japinli(at)hotmail(dot)com>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: SUBTRANS: Minimizing calls to SubTransSetParent()
Date: 2022-11-29 13:18:01
Message-ID: CAFEQCbG3psoUYKq-p2o2tE5qinnoDy-UQfPrUjF=1M-JJjN2Lg@mail.gmail.com
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Hi Tomas,

Le mar. 29 nov. 2022 à 14:06, Tomas Vondra
<tomas(dot)vondra(at)enterprisedb(dot)com> a écrit :
>
> On 11/29/22 13:49, Simon Riggs wrote:
> > On Thu, 17 Nov 2022 at 17:29, Simon Riggs <simon(dot)riggs(at)enterprisedb(dot)com> wrote:
> >
> >> (yes, the last line shows x10 performance patched, that is not a typo)
> >
> > New version of patch, now just a one-line patch!
> >
> > Results show it's still a good win for XidInMVCCSnapshot().
> >
>
> I'm a bit confused - for which workload/benchmark are there results?
> It's generally a good idea to share the scripts used to run the test and
> not just a chart.

The scripts have been attached to this thread with the initial
performance results.
Anyway, re-sending those (including a minor fix).

--
Julien Tachoires
EDB

Attachment Content-Type Size
subtrans-benchmark.tar.gz application/x-gzip 1.1 KB

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