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To: Mark Grosberg <mark@nolab.conman.org>
Cc: "Richard B. Johnson" <root@chaos.analogic.com>,
       linux-kernel@vger.kernel.org
Subject: Re: [RFD] Combined fork-exec syscall.
References: <Pine.BSO.4.44.0304281219420.22115-100000@kwalitee.nolab.conman.org>
Reply-To: Miles Bader <miles@gnu.org>
System-Type: i686-pc-linux-gnu
Blat: Foop
From: Miles Bader <miles@lsi.nec.co.jp>
Date: 06 May 2003 11:48:57 +0900
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Mark Grosberg <mark@nolab.conman.org> writes:
> And maybe on your 797.90 BogoMips super fast machine the extra syscall
> doesn't matter. But on my current server hardware (16.59 BogoMIPS) it is a
> savings.

Are you sure it's really all that bad?

The machines I use are even slower (~6 bogomips), but system calls still
seem pretty fast; I've measured them as having about a total
65-instruction overhead on my arch -- which is a lot slower than a
function call to be sure, but presumably the actual work done by the
system call ends up being more.

-Miles
-- 
`The suburb is an obsolete and contradictory form of human settlement'