From: Andres Freund <andres@anarazel.de>
To: ajaykbs <ajayakumarbs@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Multi processor server overloads occationally with system process while running postgresql-9.4
Date: Sat, 3 Oct 2015 11:26:30 +0200
Message-ID: <20151003092615.GA16902@awork2.anarazel.de> (raw)
In-Reply-To: <1443861573710-5868474.post@n5.nabble.com>
References: <1443861573710-5868474.post@n5.nabble.com>
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On 2015-10-03 01:39:33 -0700, ajaykbs wrote:
> It is observed that at some times during moderate load
> the CPU usage goes up to 400% and the users are not able to complete the
> queries in expected time. But the load is contributed by some system process
> only.The average connections are normally 50.
This email is nearly impossible to read.
But it sounds a bit like you need to disable transparent hugepages
and/or zone_reclaim mode.
Greetings,
Andres Freund
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To: pgsql-performance@postgresql.org
Cc: andres@anarazel.de, ajayakumarbs@gmail.com
Subject: Re: Multi processor server overloads occationally with system process while running postgresql-9.4
In-Reply-To: <20151003092615.GA16902@awork2.anarazel.de>
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