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From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=)
To: Gary Corcoran <gcorcoran@rcn.com>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: numbers don't lie ...
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des@des.no (Dag-Erling Sm=F8rgrav) writes:
> Gary Corcoran <gcorcoran@rcn.com> writes:
> > The confusing thing is that I thought 'real' time should be >=3D 'user'=
 + 'sys'.
> > But here 'user' is much greater than 'real' for both machines!  The sen=
se I
> > got from the other messages in this thread is that 'user' time is somew=
hat
> > meaningless (i.e. unreliable as a measure) in a multi-CPU and/or hypert=
hreading
> > environment.  Can you clarify?
> real >=3D (user + sys) * ncpu

umm, other way around of course.

real * ncpu >=3D (user + sys)

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no