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help / color / mirror / Atom feedFrom: Tom Lane <tgl@sss.pgh.pa.us>
To: Lou O'Quin <loquin@talleyds.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Query performance
Date: Fri, 11 Mar 2005 14:10:27 -0500
Message-ID: <4475.1110568227@sss.pgh.pa.us> (raw)
In-Reply-To: <s2318583.040@mesagate.talleyds.com>
References: <s2318583.040@mesagate.talleyds.com>
"Lou O'Quin" <loquin@talleyds.com> writes:
> it appears to actually be hypersensitive to the transport delay. The =
> ratios of time for the data transport (assuming 1 for the local server) =
> are:
> 1 : 2.43 : 7.71
> whereas the query execution time ratios are:
> 1 : 2.08 : 25.5 (!!!)
How do you know that's what the data transport time is --- ie, how can
you measure that separately from the total query time?
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, loquin@talleyds.com
Subject: Re: Query performance
In-Reply-To: <4475.1110568227@sss.pgh.pa.us>
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