Re: That EXPLAIN ANALYZE patch still needs work

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От Larry Rosenman
Тема Re: That EXPLAIN ANALYZE patch still needs work
Дата
Msg-id 007801c68bca$26d58560$0202fea9@aus.pervasive.com
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Ответ на Re: That EXPLAIN ANALYZE patch still needs work  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: That EXPLAIN ANALYZE patch still needs work  (Tom Lane <tgl@sss.pgh.pa.us>)
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Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
>> Hmm, I take that back.  I updated to the current CVS tip on this
>> machine and now I don't see the problem.  Without EXPLAIN ANALYZE,
>> the times are around 115-117 ms.  With EXPLAIN ANALYZE, 149-152ms.
> 
> At the moment, CVS HEAD still has the sampling patch in it.  You need
> to be looking at 8.1, or HEAD from several weeks ago, to see the full
> impact of gettimeofday-every-time.  (I imagine Simon's strace count
> is wrong for the same reason.)
> 
Does my post from yesterday (39ms without explain analyze, 280+ with explain
analyze)
on FreeBSD/amd64, Dual Xeon's in HTT mode help?

What can I do to further the investigation?

It has 8.1.4 on it.

LER



-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 512-248-2683                 E-Mail: ler@lerctr.org
US Mail: 430 Valona Loop, Round Rock, TX 78681-3893



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