Re: Pre-forking backend

Bruce Momjian <pgman@candle.pha.pa.us>

From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Steve Wolfe <steve@iboats.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2001-10-01T02:50:17Z
Lists: pgsql-hackers
> > >
> > > How hard would it be to pre-fork an extra backend for the database a
> > > user just requested so if they next user asks for the same database, the
> > > backend would already be started?
> 
>   Perhaps I'm missing something, but it seems to me that the cost of forking
> a new backend would be pretty trivial compared to the expense of processing
> anything but the most simple query.  Am I wrong in that?

True on most OS's, but on Solaris, fork is pretty expensive, or at least
we are told.

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