Date: Tue, 29 Apr 2003 18:27:50 -0400 (EDT) From: "Andrew R. Reiter" <arr@watson.org> To: Nate Williams <nate@yogotech.com> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/dev/fxp if_fxp.c if_fxpvar.h Message-ID: <20030429182723.N29403@fledge.watson.org> In-Reply-To: <16046.64504.186129.388342@emerger.yogotech.com> References: <16046.55840.945040.149302@grasshopper.cs.duke.edu> <16046.64504.186129.388342@emerger.yogotech.com>
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On Tue, 29 Apr 2003, Nate Williams wrote: :> A mutex is far more expensive than an spl. : :Huh? If so, then something is *really* screwed up, since SPL's block :out lots of things, while mutex's can/should block little things. : :That's how we get greater parrallelism. Or does he mean it's more expensive b/c of the bus locks? -- Andrew R. Reiter arr@watson.org arr@FreeBSD.org
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