Re: [HACKERS] removal of exec()

>
> Bruce Momjian <maillist@candle.pha.pa.us> writes:
>
> > I am testing a patch for removing exec() and using just fork().  I will
> > post it to the hackers list for review, if that is OK.  Should be only a
> > few hundred lines.
>
> To do what exactly?
>
> --Michael
>

[FYI for others on the list.]

Currently, a backend is created by forking the postmaster, then exec'ing
an identical binary to run the backend.  This change makes it just
fork(), but not exec() a new identical binary.


Why it was originally done this way, I don't know.  It was not trivial
to change it.  It saves 0.01 seconds on backend startup with single
query, which usually takes 0.08 seconds, so the 0.01 seconds is
significant.

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