Re: [HACKERS] removing the exec() from doexec()

> 
> 
> I'm planning on removing the exec from DoExec() and instead just
> dispatch to the appropriate function.
> 
> I don't plan on any changes to the usage of "arguments" to this new
> process, basically I'll just store them somewhere and then the forked
> backend can process them.
> 
> Is there anything I should keep in mind?  I'd like this to eventually
> be integrated into the source tree -- any particular reason why we use
> exec() when we're just re-invoking the same binary?
> 
> p.s. this is so my ssl patch doesn't have to negotiate twice -- very expensive

No reason for the exec().  I believe the only advantage is that it gives
us a separate process name in the 'ps' listing.  I have looked into
simulating this.

This exec() takes 15% of our startup time.  I have wanted it removed for
many releases now.  The only problem is to rip out the code that
re-attached to shared memory and stuff like that, because you will no
longer loose the shared memory in the exec().  The IPC code is
complicated, so good luck.  I or others can help if you get stuck.

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