From owner-freebsd-current@FreeBSD.ORG Mon Feb 11 20:41:09 2013 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id B5CFDE2C for ; Mon, 11 Feb 2013 20:41:09 +0000 (UTC) (envelope-from lars@e-new.0x20.net) Received: from mail.0x20.net (mail.0x20.net [217.69.76.211]) by mx1.freebsd.org (Postfix) with ESMTP id 48A8DCF6 for ; Mon, 11 Feb 2013 20:41:08 +0000 (UTC) Received: from e-new.0x20.net (mail.0x20.net [IPv6:2001:aa8:fffb:1::3]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.0x20.net (Postfix) with ESMTPS id 19CB56A6002; Mon, 11 Feb 2013 21:41:07 +0100 (CET) Received: from e-new.0x20.net (localhost [127.0.0.1]) by e-new.0x20.net (8.14.5/8.14.5) with ESMTP id r1BKf6Q6067841; Mon, 11 Feb 2013 21:41:06 +0100 (CET) (envelope-from lars@e-new.0x20.net) Received: (from lars@localhost) by e-new.0x20.net (8.14.5/8.14.5/Submit) id r1BKf5FB067050; Mon, 11 Feb 2013 21:41:05 +0100 (CET) (envelope-from lars) Date: Mon, 11 Feb 2013 21:41:05 +0100 From: Lars Engels To: Fabian Keil Subject: Re: 7+ days of dogfood Message-ID: <20130211204105.GL83110@e-new.0x20.net> References: <20130210000723.GA73630@troutmask.apl.washington.edu> <20130211114811.09e56b55@fabiankeil.de> <20130211184006.0c7f9943@X220.ovitrap.com> <20130211131741.1a8280af@fabiankeil.de> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="3xQkynibq3FKlJyM" Content-Disposition: inline In-Reply-To: <20130211131741.1a8280af@fabiankeil.de> X-Editor: VIM - Vi IMproved 7.3 X-Operation-System: FreeBSD 8.3-RELEASE-p4 User-Agent: Mutt/1.5.21 (2010-09-15) Cc: Erich Dollansky , freebsd-current@freebsd.org, Steve Kargl X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Feb 2013 20:41:09 -0000 --3xQkynibq3FKlJyM Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Feb 11, 2013 at 01:17:41PM +0100, Fabian Keil wrote: > Erich Dollansky wrote: >=20 > > On Mon, 11 Feb 2013 11:48:11 +0100 > > Fabian Keil wrote: >=20 > > > It's unfortunate that the builworld time roughly trippled since > > > 2010 but I guess that's progress and a more powerful system > > > should fix it. I certainly welcome clang in general, though. > > >=20 > > Trippled? Are you sure? I have the feeling it is much worse than this. >=20 > I'm sure it depends on lots of factors and our worlds probably > don't even match. >=20 > I intend to eventually plot the numbers I've collected over the years > (mainly to have a baseline for ZFS tuning) but so far I haven't and > just looked at the first and last ones: >=20 > -------------------------------------------------------------- > >>> Kernel build for ZOEY completed on Mon May 31 17:18:12 CEST 2010 > -------------------------------------------------------------- >=20 > real 10m42.935s > user 8m16.834s > sys 1m22.951s > -------------------------------------------------------------- > >>> World build completed on Mon May 31 18:38:59 CEST 2010 > -------------------------------------------------------------- >=20 > real 71m16.524s > user 51m55.771s > sys 12m24.944s >=20 > # FreeBSD r500.local 10.0-CURRENT FreeBSD 10.0-CURRENT #543 r+b74c91e: Su= n Feb 3 17:17:03 CET 2013 fk@r500.local:/usr/obj/usr/src/sys/ZOEY amd= 64 > -------------------------------------------------------------- > >>> World build completed on Tue Feb 5 21:33:55 CET 2013 > -------------------------------------------------------------- >=20 > real 261m25.904s > user 189m2.690s > sys 22m46.777s >=20 > # FreeBSD r500.local 10.0-CURRENT FreeBSD 10.0-CURRENT #547 r+21d959a: Su= n Feb 10 16:00:14 CET 2013 fk@r500.local:/usr/obj/usr/src/sys/ZOEY amd= 64 > -------------------------------------------------------------- > >>> Kernel build for ZOEY completed on Sun Feb 10 21:41:31 CET 2013 > -------------------------------------------------------------- >=20 > real 18m34.822s > user 12m13.900s > sys 2m14.028s >=20 > fk@r500 ~ $expr 261 / 71 > 3 >=20 > I agree that it "feels" worse, though. >=20 > Disclaimer: These aren't "benchmark" results, I didn't create them in > single-user mode and various relevant factors vary. I also didn't run > the numbers through ministat and don't intend to either. >=20 > > Was it in 2009 when I could compile world in a few minutes on my quad > > core. The same machine takes now hours despite having more memory. >=20 > I'm using a Core(TM)2 Duo CPU T5870 @ 2.00GHz and don't remember > ever being able to compile world in a few minutes. The bottle > neck on my system seems to be the puny 2 GB of RAM the linker > has to share with ZFS. >=20 > At least I can still buildworld without first attaching an USB > stick for additional swap space which is necessary for Firefox ... I also dislike that src build times increased over the years since I run CURRENT on my notebooks (starting 7-CURRENT, now 10-CURRENT). Wouldn't it be possible to add a DO_NOT_BUILD_CLANG_AND_GCC_IF_NOTHING_CHANGED=3D yes switch to src.conf? Building clang takes ages and gcc is also pretty big... --3xQkynibq3FKlJyM Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (FreeBSD) iEYEARECAAYFAlEZV2EACgkQKc512sD3afhzQwCfSgYx/cX42b7ZX8Vca8PnEE8M /mgAoMwqhxSsHikMvuNqPTMipLm9yESn =/Kld -----END PGP SIGNATURE----- --3xQkynibq3FKlJyM--