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From: Tom Lane <tgl@sss.pgh.pa.us>
To: downey.deng@postgresdata.com <downey.deng@postgresdata.com>
Cc: pgsql-admin <pgsql-admin@postgresql.org>
Cc: pgsql-general <pgsql-general@postgresql.org>
Subject: Re: cpu hight sy% usage
Date: Mon, 27 Feb 2017 23:37:49 -0500
Message-ID: <1474.1488256669@sss.pgh.pa.us> (raw)
In-Reply-To: <2017022723135372857425@postgresdata.com>
References: <2017022723135372857425@postgresdata.com>
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"downey.deng@postgresdata.com" <downey.deng@postgresdata.com> writes:
> i have PostgreSQL 9.5.3 server running on redhalt 6.6
> when i run one query  with pgbench the cpu is 80% and sy% is 60%

If you were to provide a self-contained test case, people might take
some interest in this ... but nobody is going to spend time guessing
at all the details you didn't supply.

https://www.postgresql.org/docs/current/static/bug-reporting.html
https://wiki.postgresql.org/wiki/Slow_Query_Questions

			regards, tom lane


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