Date: Mon, 27 Oct 2003 01:27:12 -0800 From: Jon Mini <mini@FreeBSD.org> To: Bruce Evans <bde@zeta.org.au> Cc: current@FreeBSD.org Subject: Re: More ULE bugs fixed. Message-ID: <20031027092712.GD19043@elvis.mu.org> In-Reply-To: <20031027193638.G22164@gamplex.bde.org> References: <20031017180118.U7662@gamplex.bde.org> <20031027072944.GC19043@elvis.mu.org> <20031027193638.G22164@gamplex.bde.org>
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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/
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