Re: performance config help
От | Dusek, Bob |
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Тема | Re: performance config help |
Дата | |
Msg-id | 6EB5F166D3FA6B499A1A25856BDB9B6085F4A309@susday216.corp.ncr.com обсуждение исходный текст |
Ответ на | Re: performance config help (Scott Marlowe <scott.marlowe@gmail.com>) |
Ответы |
Re: performance config help
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Список | pgsql-performance |
> I have slave dbs running on four 7200RPM SATA drives with fsync off. > They only get updated from the master db so if they go boom, I just > recreate their node. There's times fsync off is ok, you just have to > know that that db is now considered "disposable". > > However, I'd suggest doing some benchmarking to PROVE that you're > seeing an improvement from fsync being off. If there's no > improvement, then you might as well leave it on and save yourself some > headache later on when the machine gets powered off suddenly etc. I haven't been involved in any benchmarking of PG8 with fsync=off, but we certainly did it with PG 7.4. fsync=0ff, for ourpurposes, was MUCH faster. > -- > Sent via pgsql-performance mailing list > (pgsql-performance@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-performance >
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