Re: CVS commit: src/usr.bin/pathchk

[christos%astron.com@localhost (Christos Zoulas)]

In article <20101110182232.GA19700%snowdrop.l8s.co.uk@localhost>,
David Laight  <david%l8s.co.uk@localhost> wrote:
>On Wed, Nov 10, 2010 at 01:34:44PM +0200, Alan Barrett wrote:
>> 
>> "-exec ... +" and "xargs" will both accumulate many args into each
>> invocation of the child program, and will both fork the same number of
>> times.  The version using xargs is actually less efficient, because
>> there's one extra fork to run "xargs" itself, and there's extra I/O over
>> the pipeline.
>
>Modulo the fact that the xargs version might run faster because of the
>asynchronous pipe that allows find's directory IO to overlap
>the executed commands.
>(It might run slower due to disk head thrashing.)

And -P <maxproc>

christos