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From: kaido vaikla <kaido.vaikla@gmail.com>
Date: Fri, 17 Apr 2026 10:19:25 +0300
Message-ID: 
 <CA+427g_WWkt-QcqbOOruG3WEwpkOrhPER51Dp29wd7MoFnVchw@mail.gmail.com>
Subject: Re: Slowness
To: Laurenz Albe <laurenz.albe@cybertec.at>
Cc: Raj <rajeshkumar.dba09@gmail.com>,
	Pgsql-admin <pgsql-admin@lists.postgresql.org>
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If "customer says they are facing slowness" then my three first steps
usually are
1) grep "ERROR:\|FATAL:" server.log
2) top. Maybe there is some unexpected process(es). Use a f, to sort by
mem, cpu etc
3) query:
select datname, usename, client_addr, leader_pid, pid, DATE_TRUNC('second',
query_start) query_start, wait_event_type, wait_event, query_id from
pg_stat_activity where xact_start is not NULL order by 6;
and
\watch
And take a look at wait_event_type, wait_event

It gives glance, what is currently going on.

br
Kaido

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:monospac=
e,monospace">If &quot;customer says they are facing slowness&quot; then my =
three first steps usually are<br>1) grep &quot;ERROR:\|FATAL:&quot; server.=
log<br>2) top. Maybe there is some unexpected process(es). Use a f, to sort=
 by mem, cpu etc <br>3) query: <br>select datname, usename, client_addr, le=
ader_pid, pid, DATE_TRUNC(&#39;second&#39;, query_start) query_start, wait_=
event_type, wait_event, query_id from pg_stat_activity where xact_start is =
not NULL order by 6;<br>and=C2=A0<br>\watch<br>And take a look at wait_even=
t_type, wait_event<br><br>It gives glance, what is currently going on.<br><=
br>br<br>Kaido<br><br><br></div></div>

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