Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)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