Re: 7.0.2 -> 7.1 performance drop
От | Frank Bax |
---|---|
Тема | Re: 7.0.2 -> 7.1 performance drop |
Дата | |
Msg-id | 3.0.6.32.20011114221806.02733d50@pop6.sympatico.ca обсуждение исходный текст |
Ответ на | Re: 7.0.2 -> 7.1 performance drop (Jason Earl <jason.earl@simplot.com>) |
Список | pgsql-general |
At 05:13 PM 11/12/01 -0700, Jason Earl wrote: >Doug McNaught <doug@wireboard.com> writes: > >> Frank Bax <fbax@sympatico.ca> writes: >> >> > A little more pondering and I remember that I looked a little >> > closer at startup parms during the PG upgrade. I had removed -F option. >> > Put it back in and runtime dropped to 10 minutes again - problem solved! >> >> You do understand the implications of -F for your data integrity, >> right? > >Of course, he is rebuilding these tables from scratch every night. My >guess is that integrity is not much of an issue. > >On the other hand Frank, If you could work your inserts into one large >transaction you would probably get quite a bit of the benefits of >removing the -F option without risking the integrity of your database. On the other hand, I do have other tables to worry about on my system... I read up on -F during upgrade; that's why I decided to take it out; default install from OpenBSD packages has this option included in suggested startup script. I was just confirming that this option accounted for all the time difference in processing of my script. I plan to investigate the impact of using transactions without -F in the near future. Thanks for the help guys. I've been unable to access email for a couple of days. Sorry about delay in replying. Frank
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