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Date: Mon, 27 Oct 2003 01:27:12 -0800
From: Jon Mini <mini@FreeBSD.org>
To: Bruce Evans <bde@zeta.org.au>
Message-ID: <20031027092712.GD19043@elvis.mu.org>
References: <20031017180118.U7662@gamplex.bde.org>
	<20031027072944.GC19043@elvis.mu.org> <20031027193638.G22164@gamplex.bde.org>
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cc: Jeff Roberson <jroberson@chesapeake.net>
cc: current@FreeBSD.org
Subject: Re: More ULE bugs fixed.
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Bruce Evans [bde@zeta.org.au] wrote :

> On Sun, 26 Oct 2003, Jon Mini wrote:
> 
> > Jeff Roberson [jroberson@chesapeake.net] wrote :
> >
> > > On Fri, 17 Oct 2003, Bruce Evans wrote:
> > >
> > > How would one test if it was an improvement on the 4BSD scheduler?  It
> > > is not even competitive in my simple tests.
> >
> > What were your simple tests?
> 
> Er, they were in the original mail.  Just do parts of buildworld with -j16
> on an SMP system.  ULE was 2.4 times slower for make depend and 2.1 times
> slower for make obj.  Something must have been very wrong, since make obj,
> especially, should be completely i/o bound so it shouldn't be affected
> by the scheduler.  Also, run a bunch of CPU hog processes with various
> nicenesses and look at top output to check that they are given reasonable
> amounts of CPU.

My apologies, I just subscribed to current and only caught the tail
end of this thread.

-- 
Jonathan Mini <mini@freebsd.org>
http://www.freebsd.org/