On Sat, 13 Mar 2004, Andy Sy wrote:
> > wraparound has been bumped up from 32,000 to 1 billion, improving
> > application starting performance on very busy or very long-lived 
> > systems."
> 
> I don't see how bumping up the PID wraparound can decrease
> application startup performance... is this explained?
> 

my guess: 

after a wrap-around, you need extra code to check if the 
candidate PID to be given to a new process is still being used.
as the PID space becomes bigger, the longer you need
not worry about PID clashes which then saves you CPU cycles.

pong

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