fork and exec (was: Re: Proposed patch to system.XWinrc)

[Andy Koppe]

2009/6/23 Christopher Faylor:
>>If posix_spawn() ever gets implemented in Cygwin to
>>avoid the slowness of fork(), /bin/sh might well change to the first
>>shell that supports it.
>
> It's really somewhat of an urban myth about Cygwin's fork being slow.
> Cygwin's exec is also pretty slow.  I'm not really sure that posix_spawn
> would cause any kind of performance improvement.

Ah, right. So is it Windows' CreateProcess() itself that's slow? Or is
it some of the additional stuff that exec() needs to deal with?
Signals? The hidden console?

Andy

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