Re: Multiple postgres.exe On Processes

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От John R Pierce
Тема Re: Multiple postgres.exe On Processes
Дата
Msg-id 4993DBBF.8060007@hogranch.com
обсуждение исходный текст
Ответ на Multiple postgres.exe On Processes  (Abdul Rahman <abr_ora@yahoo.com>)
Ответы Re: Multiple postgres.exe On Processes  (Serge Fonville <serge.fonville@gmail.com>)
Re: Multiple postgres.exe On Processes  (Harald Armin Massa <haraldarminmassa@gmail.com>)
Список pgsql-general
Abdul Rahman wrote:
> I have fear that sufficient increase in number of postgres.exe after
> one or two logins on servers may down the speed of the server or even
> server. Is there any solution or technique to overcome this overhead.

each connection runs one process, plus the 3 master processes for the
postmaster, the writer, etc.     with two logins, I'd expect to see 5
processes.   with 102 concurrent logins, 105 processes.  the bulk of the
memory and code is shared by these processes, with the exception of
things like per client work_mem buffers which by definition can't be
shared as they are used to service that connections requests.

what overhead are you talking about?



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