Date: Tue, 1 Jun 2004 22:21:50 -0400 (EDT) From: Robert Watson <rwatson@freebsd.org> To: Luke <luked@pobox.com> Cc: freebsd-current@freebsd.org Subject: Re: Cap on network speed in CURRENT? Message-ID: <Pine.NEB.3.96L.1040601222058.6295C-100000@fledge.watson.org> In-Reply-To: <Pine.NEB.4.60.0406011838190.29037@sdf.lonestar.org>
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On Tue, 1 Jun 2004, Luke wrote: > This is indeed a very slow host, by modern standards. It's a fussy old > Pentium 166MHz that I've put through hell for the last eight years or > so. > > I'm building a kernel with witness and invariants turned off. Building > a kernel usually takes overnight. I'll try it out tomorrow and see how > it goes. If those testing programs don't require X, I'll see about > installing one of them to help me figure out what's going on. The iperf > site looks like it's got some helpful information that I should read > too. Also, try disabling SMP and possibly APIC support if it's a UP box. There's a measurable performance overhead to compiling with SMP support, since mutexes have to be compiled with locked instructions. Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Senior Research Scientist, McAfee Research
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