| From: | Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com> |
|---|---|
| To: | Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> |
| Cc: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Using COPY FREEZE in pgbench |
| Date: | 2021-07-06 20:10:02 |
| Message-ID: | CAEZATCXFfDaBJpZFJpud4P6sM4BGwBh+JDO6vP5oX4WXgh6c2w@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sun, 4 Jul 2021 at 09:32, Tatsuo Ishii <ishii(at)sraoss(dot)co(dot)jp> wrote:
>
> >> So overall gain by the patch is around 15%, whereas the last test
> >> before the commit was 14%. It seems the patch is still beneficial
> >> after the commit.
> >
> > Yes, that's good!
>
> Yeah!
>
I tested this with -s100 and got similar results, but with -s1000 it
was more like 1.5x faster:
master:
done in 111.33 s (drop tables 0.00 s, create tables 0.01 s,
client-side generate 52.45 s, vacuum 32.30 s, primary keys 26.58 s)
patch:
done in 74.04 s (drop tables 0.46 s, create tables 0.04 s, client-side
generate 51.81 s, vacuum 2.11 s, primary keys 19.63 s)
Nice!
Regards,
Dean
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