Re: PostgreSQL + SMP
От | Alfred Perlstein |
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Тема | Re: PostgreSQL + SMP |
Дата | |
Msg-id | 20001210122630.J16205@fw.wintelcom.net обсуждение исходный текст |
Ответ на | Re: PostgreSQL + SMP (Bruce Momjian <pgman@candle.pha.pa.us>) |
Ответы |
Re: PostgreSQL + SMP
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Список | pgsql-admin |
* Bruce Momjian <pgman@candle.pha.pa.us> [001210 12:19] wrote: > > Postgre is not threaded, but every connection gets it's own process. The OS > > will distribute the processes across the processors. Not sure I said that > > very will. > > > > Basically a single connection will not be any faster with SMP, but multiple > > connections will be. > > Actually, even a single process will be faster because all other system > process will run on other cpu's. Depending on how idle you are, the large overhead of bus locking can cause a lot of perf degredation(sp?) for the idle SMP case. -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] "I have the heart of a child; I keep it in a jar on my desk."
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