Re: Roadmap for a Win32 port

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Dann Corbit <DCorbit(at)connx(dot)com>
Cc: Jan Wieck <JanWieck(at)Yahoo(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Roadmap for a Win32 port
Date: 2002-06-18 01:27:02
Message-ID: 200206180127.g5I1R2w12116@candle.pha.pa.us
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Dann Corbit wrote:
> > Can't. postmaster/postgres are symlinks to the same file,
> > and we fork()
> > from postmaster to create backends. All the code has to be in the
> > postmaster so the fork works.
>
> Is fork() faster than creation of a new process via exec()? After the
> creation of the shared memory, the information needed to use it could be
> passed to the Postgres servers on the command line.
>
> The startup stuff for PostgreSQL is just a few files. It does not seem
> insurmountable to change it. But it is none of my business. If it is a
> major hassle (for reasons which I am not aware) then I see no driving
> reason to change it.

We used to fork() and exec(), but that was slow. Now we preload stuff
in the postmaster for each backend. It is faster.

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Bruce Momjian | http://candle.pha.pa.us
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