Date: Mon, 11 Feb 2013 10:49:50 -0800 From: Adrian Chadd <adrian@freebsd.org> To: Fabian Keil <freebsd-listen@fabiankeil.de> Cc: Glen Barber <gjb@freebsd.org>, freebsd-current@freebsd.org, David Chisnall <theraven@freebsd.org>, Steve Kargl <sgk@troutmask.apl.washington.edu> Subject: Re: 7+ days of dogfood Message-ID: <CAJ-VmomGqvJgBWcXM5D7-SazMZwfDZ_VmTaAzDF_pNsn48AGcQ@mail.gmail.com> In-Reply-To: <20130211184505.1d0693f4@fabiankeil.de> References: <20130210000723.GA73630@troutmask.apl.washington.edu> <20130211114811.09e56b55@fabiankeil.de> <17E009FB-23FA-4E04-8437-DE81033164DE@FreeBSD.org> <20130211145647.79a01f7e@fabiankeil.de> <20130211141512.GN1334@glenbarber.us> <20130211184505.1d0693f4@fabiankeil.de>
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On 11 February 2013 09:45, Fabian Keil <freebsd-listen@fabiankeil.de> wrote: >> You might also want to try MALLOC_PRODUCTION=1 in make.conf. This took >> my buildworld/buildkernel times from 35/15 minutes to 8/5 minutes, >> respectively. > > I've been using MALLOC_PRODUCTION since before I started collecting > build times and don't remember the impact, but I think the difference > was less impressive than in your case and the massive slowdowns that > are now supposed to be fixed only happened "recently" (after 2010) > and thus never affected me. Thanks, though. If you're running a recent multicore box with large quantities of very fast RAM - no, you would've have seen it. If you do a buildworld on a HT Atom CPU in a netbook .. holy crap do you notice it. Adrian
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