Am 12.12.2011 09:43, schrieb Alan McKinnon: > On Mon, 12 Dec 2011 07:29:16 +0700 > Pandu Poluan <pa...@poluan.info> wrote: > >>>> It's worked for me ever since I switched all of my machines to >>>> OpenRC a year+(?) ago. >>> >>> You are not a representative sample. >>> >> >> worksforme >> >> In production servers, even. Virtualized on top of XenServer. All of >> them last updated last week. >> > > Same here. All my server VMs work just fine with parallel enabled. > There's nothing complex in them, they tend to be single-service > machines. >
Don't tell me you reboot your servers so often that it is necessary to tune the boot process for every last second. And please tell me you make the time slots for scheduled reboots large enough for trouble shooting, thereby not requiring every last second, either. > I don't have a current desktop Gentoo system, those necessarily have > more complex start-up routines. Perhaps that's where most of the > problems are to found? > Guess so. Besides, there is a new init script format in the pipe, for example mentioned here: [1] It will also make use of cgroups [2]. IMHO loosing a few seconds of boot time is an acceptable price for better CPU and IO scheduling. If these "new style" scripts are written declarative, that means less shell scripting and probably better performance even under sequential execution. And as I've learned often and hard: You don't parallelize until you have properly optimized your sequential execution, not the other way around. WTF do you need fast boot processes, anyway?! If you care about this, you hibernate or suspend. Daily shutdown/bootup sounds like something you'd do on a diskless client, a pre-ACPI system or some flakey hardware. I hardly see a boot screen once per month. My laptop currently has an uptime of 15 days, my workstation three months. You probably waste more time repopulating your page cache after starting your desktop environment than you do with init scripts. [1] http://blog.flameeyes.eu/2011/10/22/updating-init-scripts [2] http://blog.flameeyes.eu/2011/11/28/the-infamous-run-migration Regards, Florian Philipp
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