| From: | Rushabh Lathia <rushabh(dot)lathia(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Haribabu Kommi <kommi(dot)haribabu(at)gmail(dot)com>, Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Gather Merge |
| Date: | 2017-01-18 06:01:25 |
| Message-ID: | CAGPqQf06SuTEg-c2pVQMTcxOeBwjR_+hJx5mEfOUJNOHwhHDfw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jan 17, 2017 at 6:44 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
wrote:
> On Tue, Jan 17, 2017 at 5:19 PM, Rushabh Lathia
> <rushabh(dot)lathia(at)gmail(dot)com> wrote:
> >
> >
> >
> > Here is the benchmark number which I got with the latest (v6) patch:
> >
> > - max_worker_processes = DEFAULT (8)
> > - max_parallel_workers_per_gather = 4
> > - Cold cache environment is ensured. With every query execution - server
> is
> > stopped and also OS caches were dropped.
> > - The reported values of execution time (in ms) is median of 3
> executions.
> > - power2 machine with 512GB of RAM
> > - With default postgres.conf
> >
>
> You haven't mentioned scale factor used in these tests.
>
Oops sorry. Those results are for scale factor 10.
>
> --
> With Regards,
> Amit Kapila.
> EnterpriseDB: http://www.enterprisedb.com
>
--
Rushabh Lathia
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