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From: Justin Pryzby <pryzby@telsasoft.com>
To: Richard Lee <swift1984@gmail.com>
Cc: tomas.vondra@2ndquadrant.com
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: Fwd: Query with high planning time compared to execution time
Date: Mon, 5 Nov 2018 07:55:19 -0600
Message-ID: <20181105135519.GA25283@telsasoft.com> (raw)
In-Reply-To: <CALhvPTS5ao9U33xo91UYPzQx2EXZex1Mbd3P9iX-GeVbd5VBPg@mail.gmail.com>
References: <CALhvPTQJ12d1VEOoekJNt6+zDuSfcubqP3WO47OiUXUVBR3o3g@mail.gmail.com>
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	<8db7abc2-9ddf-858c-e3db-af014cf2ccd9@2ndquadrant.com>
	<CALhvPTRnqLoS-XAo1MAJEGM=0KuxVua_ATmigELh8EtVhqSjxQ@mail.gmail.com>
	<20181105041009.GY25283@telsasoft.com>
	<CALhvPTS5ao9U33xo91UYPzQx2EXZex1Mbd3P9iX-GeVbd5VBPg@mail.gmail.com>

On Mon, Nov 05, 2018 at 03:04:29PM +0800, Richard Lee wrote:
> Executed perf-record and perf-report:
> -bash-4.2$ perf record -g -- psql -U sri sri <
> /var/lib/pgsql/10/data/pg_log/1-b10/query.txt
> < ... snipped ... >

That's showing perf output for the psql client.  What you want is output for
the server process (essentially all the client does is move data between the
user to the server).

https://wiki.postgresql.org/wiki/Profiling_with_perf

Justin

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