Date: Tue, 16 Aug 2022 18:54:08 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: questions@freebsd.org Subject: Re: How fast can I get FBSD to boot? Message-ID: <20220816185408.700bfb0a497f0323a9070605@sohara.org> In-Reply-To: <DF360E09-BF4B-4B09-B522-05C3C42440AD@sermon-archive.info> References: <CAHieY7RtGo6j=2bcXT1Xu7iEuz64X0_H%2BL8o=LxH3vz6B2Q4Ww@mail.gmail.com> <DF360E09-BF4B-4B09-B522-05C3C42440AD@sermon-archive.info>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 16 Aug 2022 10:47:12 -0700 Doug Hardie <bc979@lafn.org> wrote: > RSX-11D solved that problem by having a console command that wrote all of > memory to a specific disk file. You got the system setup the way you > wanted and then entered that command. You could add additional commands > to start your application to that command. > > On boot, I believe the hardware was initialized first, and them memory > was completely overlaid from the file and then the CLI executed any > additional commands. It was faster than greased lightening. On the > PDP-11/45 it was way less than one second. > > That would take some serious modifications to FreeBSD to implement that, > but I don't think you would find anything faster. You could probably torture the suspend/resume mechanism into doing the job. -- Steve O'Hara-Smith <steve@sohara.org>
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20220816185408.700bfb0a497f0323a9070605>