Re: WIP patch: reducing overhead for repeat de-TOASTing

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Mark Cave-Ayland <mark(dot)cave-ayland(at)siriusit(dot)co(dot)uk>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: WIP patch: reducing overhead for repeat de-TOASTing
Date: 2008-07-01 13:53:05
Message-ID: 2910.1214920385@sss.pgh.pa.us
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Mark Cave-Ayland <mark(dot)cave-ayland(at)siriusit(dot)co(dot)uk> writes:
> Unfortunately I have to report back that with your WIP patch applied,
> timings seem to have become several orders of magnitude *worse*:

Ugh. Could I pester you to run the case under gprof or oprofile?
Or, if you can give me step-by-step directions for setting up the
test scenario, I could do that here.

regards, tom lane

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