Re: Idle processes chewing up CPU?

From: "Brendan Hill" <brendanh(at)jims(dot)net>
To: "'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: <pgsql-general(at)postgresql(dot)org>
Subject: Re: Idle processes chewing up CPU?
Date: 2009-07-29 01:17:44
Message-ID: 1abd01ca0fea$61c89660$2559c320$@net
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Hi Tom,

Given it's on Windows, any suggestion for how I would get hold of this?
(Process Monitor tool perhaps?)

Regards,
-Brendan

-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: Wednesday, 29 July 2009 4:13 AM
To: Brendan Hill
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Idle processes chewing up CPU?

"Brendan Hill" <brendanh(at)jims(dot)net> writes:
> Using the Process Explorer tool, I've noticed that a child postgres.exe is
> chewing up 25% of the CPU usage each (we have two dual-core CPUs,
presumably
> it's chewing up one core). Using SELECT * FROM pg_stat_activity, I located
> the process id (#3884), and it showed:
> <IDLE>

Hmph. When a new command is received, there's some amount of parsing
overhead that happens before it changes the status display to not-IDLE,
but it shouldn't be minutes' worth. Can you get a stack trace next time
that happens?

regards, tom lane

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