Date: Tue, 20 Dec 2011 09:08:57 -0500 From: John Baldwin <jhb@freebsd.org> To: David Chisnall <theraven@freebsd.org> Cc: Doug Barton <dougb@freebsd.org>, Garrett Cooper <yanegomi@gmail.com>, Max Khon <fjoe@freebsd.org>, svn-src-all@freebsd.org, src-committers@freebsd.org, =?iso-8859-1?q?G=E1bor_K=F6vesd=E1n?= <gabor@t-hosting.hu>, Bruce Evans <brde@optusnet.com.au>, svn-src-head@freebsd.org, Warner Losh <imp@bsdimp.com> Subject: Re: svn commit: r228143 - in head: . share/mk tools/build/options Message-ID: <201112200908.57306.jhb@freebsd.org> In-Reply-To: <8CCE4DDE-B203-42FF-A2FA-9106403DE077@FreeBSD.org> References: <201111291946.pATJkHMs064094@svn.freebsd.org> <20111220171740.X1005@besplex.bde.org> <8CCE4DDE-B203-42FF-A2FA-9106403DE077@FreeBSD.org>
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On Tuesday, December 20, 2011 5:05:49 am David Chisnall wrote: > On 20 Dec 2011, at 06:20, Bruce Evans wrote: > > > Don't be silly. Building profiled libraries takes as much as 1 minute. > > Many would not want to wait that long (if they noticed how long it takes). > > This is not 1994 when building of profiling libraries was left in because > > it only took an extra hour or or so. > > One of the platforms I use has an 800MHz ARM processor. Building LLVM (even a release build with asserts disabled and with all of the cross-compile targets disabled) is an overnight job. On my main laptop, a release build of LLVM takes about 5 minutes. > > Please don't assume that just because fast computers exist that they are the only things people are using. A lot of the more interesting platforms these days are significantly slower. And I doubt you do a build with a stock /etc/src.conf on such hardware either. The defaults for src.conf should be for the common case, and in the common case profiled library builds are in the noise. I do add WITHOUT_PROFILE to many of my machines in /etc/src.conf, but I still think they should be enabled by default. -- John Baldwin
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