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From: Andi Kleen <ak@linux.intel.com>
To: Josh Triplett <josh@joshtriplett.org>
Cc: Ingo Molnar <mingo@kernel.org>,
	Markus Trippelsdorf <markus@trippelsdorf.de>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Michal Marek <mmarek@suse.cz>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Sam Ravnborg <sam@ravnborg.org>
Subject: Re: [GIT] kbuild/lto changes for 3.15-rc1
Date: Mon, 14 Apr 2014 18:52:33 -0700	[thread overview]
Message-ID: <20140415015233.GE32556@tassilo.jf.intel.com> (raw)
In-Reply-To: <20140415010003.GA2765@jtriplet-mobl1>

> > 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

  reply	other threads:[~2014-04-15  1:52 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-07 20:19 [GIT] kbuild/lto changes for 3.15-rc1 Michal Marek
2014-04-07 20:59 ` Andi Kleen
2014-04-08 15:26 ` Linus Torvalds
2014-04-08 20:49   ` josh
2014-04-08 22:44     ` Linus Torvalds
2014-04-09  1:35       ` Andi Kleen
2014-04-09  6:01         ` Ingo Molnar
2014-04-09  8:17           ` Markus Trippelsdorf
2014-04-14 10:32             ` Ingo Molnar
2014-04-14 10:46               ` Markus Trippelsdorf
2014-04-14 10:55                 ` Ingo Molnar
2014-04-15  1:00               ` Josh Triplett
2014-04-15  1:52                 ` Andi Kleen [this message]
2014-04-15  6:00                 ` Ingo Molnar
2014-04-15  9:36                 ` Ralf Baechle
2014-04-15 11:19                   ` Sam Ravnborg
2014-04-15 11:36                     ` Markus Trippelsdorf
2014-04-15 18:19                       ` Sam Ravnborg
2014-04-15 18:29                         ` Markus Trippelsdorf
2014-04-16  6:49                           ` Ingo Molnar
2014-04-09 15:40           ` Andi Kleen
2014-04-08 22:49   ` Andi Kleen
2014-04-09  0:10     ` Jan Hubicka
2014-04-09  1:23       ` Andi Kleen
2014-04-09  0:14     ` Tim Bird

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