Re: Idle processes chewing up CPU? - Mailing list pgsql-general

From Brendan Hill
Subject Re: Idle processes chewing up CPU?
Date
Msg-id 1abd01ca0fea$61c89660$2559c320$@net
Whole thread Raw
In response to Re: Idle processes chewing up CPU?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Idle processes chewing up CPU?
Re: Idle processes chewing up CPU?
List pgsql-general
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@sss.pgh.pa.us]
Sent: Wednesday, 29 July 2009 4:13 AM
To: Brendan Hill
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] Idle processes chewing up CPU?

"Brendan Hill" <brendanh@jims.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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