Re: scaling up postgres

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От David Boreham
Тема Re: scaling up postgres
Дата
Msg-id 4481A856.7050907@boreham.org
обсуждение исходный текст
Ответ на Re: scaling up postgres  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: scaling up postgres  ("Neil Saunders" <n.j.saunders@gmail.com>)
Список pgsql-performance
Tom Lane wrote:
fzied@planet.tn writes: 
I'm using httperf/autobench for measurments and the best result I can get 
is that my system can handle a trafiic of almost 1600 New con/sec.   
As per PFC's comment, if connections/sec is a bottleneck for you then
the answer is to use persistent connections.  Launching a new backend
is a fairly heavyweight operation in Postgres.  
I thought the OP was talking about HTTP connections/s. He didn't say if he
was using persistent database connections or not (obviously better if so).
If it were the case that his setup is new backend launch rate-limited, then
wouldn't the machine show CPU saturation ?  (he said it didn't).


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