Re: That EXPLAIN ANALYZE patch still needs work
От | Larry Rosenman |
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Тема | Re: That EXPLAIN ANALYZE patch still needs work |
Дата | |
Msg-id | 007801c68bca$26d58560$0202fea9@aus.pervasive.com обсуждение исходный текст |
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
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Список | pgsql-hackers |
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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