Re: Pre-forking backend

Bruce Momjian <pgman@candle.pha.pa.us> writes:
>> On some operating systems, only one child at a time can accept() on the
>> socket.  On these, you have to lock around the call to accept().

> But how do you know the client wants the database you have forked?  They
> could want a different one.

This approach would only work as far as saving the fork() call itself,
not the backend setup time.  Not sure it's worth the trouble.  I doubt
that the fork itself is a huge component of our start time; it's setting
up all the catalog caches and so forth that's expensive.
        regards, tom lane