From: | Flo Rance <trourance(at)gmail(dot)com> |
---|---|
To: | Thomas Güttler <guettliml(at)thomas-guettler(dot)de> |
Cc: | postgres performance list <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: Profile what the production server is doing |
Date: | 2018-07-23 15:16:57 |
Message-ID: | CAHogYcUfssXBJOEiOAUvASR_P+rfZnz0XD8Zsv7XDb+hgwzPBQ@mail.gmail.com |
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Lists: | pgsql-performance |
pgobserver might do that as well, particulary useful for functions
performances.
https://github.com/zalando/PGObserver
On Mon, Jul 23, 2018 at 1:18 PM, Thomas Güttler <
guettliml(at)thomas-guettler(dot)de> wrote:
> Is there a tool which does this for PostgreSQL?
>
> Take a "snapshot" of what the server is doing about 10 times per second.
> Write this to a file.
> After N hours you can aggregate the file.
> What does the server do most of the time?
> Which tables/index gets used the most.
>
> Before optimizing a database, I would like to know what is going
> on in the production system.
>
> I know that there are internal tables like pg_stat_statements.
> But I guess doing a snapshot every N millseconds will present a
> better picture of what is going in in real life.
>
> Is there already a tool which goes this way?
>
> Or is there a better way?
>
> Regards,
> Thomas Güttler
>
> --
> Thomas Guettler http://www.thomas-guettler.de/
> I am looking for feedback: https://github.com/guettli/pro
> gramming-guidelines
>
>
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