Re: profiling connection overhead

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)postgresql(dot)org, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
Subject: Re: profiling connection overhead
Date: 2010-11-24 22:03:48
Message-ID: 22686.1290636228@sss.pgh.pa.us
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Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Wed, Nov 24, 2010 at 4:05 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> (You might be able to confirm or disprove this theory if you ask
>> oprofile to count memory access stalls instead of CPU clock cycles...)

> I don't see an event for that.

You probably want something involving cache misses. The event names
vary depending on just which CPU you've got.

regards, tom lane

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