Date: Mon, 27 Mar 2000 12:04:15 -0700 (MST) From: Nate Williams <nate@yogotech.com> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: Daniel Eischen <eischen@vigrid.com>, Nate Williams <nate@yogotech.com>, nms@otdel-1.org, freebsd-current@FreeBSD.ORG Subject: Re: Is there spinlocks/semaphores available for drivers? Message-ID: <200003271904.MAA27402@nomad.yogotech.com> In-Reply-To: <200003271901.LAA42391@apollo.backplane.com> References: <Pine.SUN.3.91.1000327131623.6333A-100000@pcnet1.pcnet.com> <200003271901.LAA42391@apollo.backplane.com>
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> :And would there still be areas of the kernel that disable multiple > :interrupts, perhaps CAM or the network stack for instance? What do > :all the splbio and splnet calls translate into in this new scheme? > : > > The entire design of the kernel is currently predicated on the spl*() > mechanism. We obviously can't rip it out in a day. I'm guessing it > will probably take two years ... or never if we can eek out sufficient > performance with it still in place. It is my (probably naive) understanding that BSDi has done a bunch of work in this area, and that we should be able to leverage alot of their work. Having never seen it, I (bogusly?) assume they aren't using spl*() anymore, given that they now have kernel threads. Does anyone know more? Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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