linux-kernel - Re: [GIT] kbuild/lto changes for 3.15-rc1

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Date:	Mon, 14 Apr 2014 18:52:33 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	Ingo Molnar <mingo@...nel.org>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Michal Marek <mmarek@...e.cz>,
	Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [GIT] kbuild/lto changes for 3.15-rc1

> > and it slows down 
> > kernel development'.
> 
> No, it doesn't slow down development builds; it makes kernel builds
> slower if and only if LTO is turned on, which most kernel developers
> won't need to do.  On the other hand, distro and embedded kernels can do
> so for final builds, and developers pushing to minimize the kernel can
> turn it on for their own work as needed.

Yes and the patch even takes special care that you will not enable
it by mistake.

-Andi
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