From mboxrd@z Thu Jan 1 00:00:00 1970 From: lm@mcvoy.com (Larry McVoy) Date: Wed, 15 Mar 2017 08:59:05 -0700 Subject: [TUHS] System Economics (was is Linux "officially branded UNIX") In-Reply-To: References: <20170314153815.GA32726@mcvoy.com> <9deec795-ecd6-7924-c10f-b722ee388a0c@kilonet.net> <20170314155718.GH32139@yeono.kjorling.se> <47c38ea0-accb-407b-26c8-6b4877657b21@kilonet.net> <20170315143228.GG25424@yeono.kjorling.se> Message-ID: <20170315155905.GF2995@mcvoy.com> On Wed, Mar 15, 2017 at 11:36:21AM -0400, Arthur Krewat wrote: > Off-topic: Anyone ever run SunOS on a Sparc-10 or similar platform (670?) > with two processors? Was it my imagination or did it actually use both > processors? Yeah, SunOS 4.1.4 had some MP work done to it. Pretty sure I posted about it here and dragged Greg Limes into it. He was involved in that work. I think it sort of worked up to 4 CPUs but as with all early kernel threading stuff it worked better when it was a 4 cpus of userland work, less so when it was 4 cpus of I/O. > Side note: I was one of those people who was pulled kicking-and-screaming > into the Solaris (SVR4) world You and me both.