linux-kernel - Re: [patch] measurements, numbers about CONFIG_OPTIMIZE

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Message-ID: <alpine.DEB.1.10.0901091206460.17378@gandalf.stny.rr.com>
Date:	Fri, 9 Jan 2009 12:07:59 -0500 (EST)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Dirk Hohndel <hohndel@...radead.org>, Ingo Molnar <mingo@...e.hu>,
	jim owens <jowens@...com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Chris Mason <chris.mason@...cle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	paulmck@...ux.vnet.ibm.com, Gregory Haskins <ghaskins@...ell.com>,
	Matthew Wilcox <matthew@....cx>,
	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-btrfs <linux-btrfs@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Nick Piggin <npiggin@...e.de>,
	Peter Morreale <pmorreale@...ell.com>,
	Sven Dietrich <SDietrich@...ell.com>
Subject: Re: [patch] measurements, numbers about CONFIG_OPTIMIZE_INLINING=y
 impact


On Fri, 9 Jan 2009, H. Peter Anvin wrote:

> Dirk Hohndel wrote:
> > 
> > Does gcc actually follow the "promise"? If that's the case (and if it's
> > considered a bug when it doesn't), then we can get what Linus wants by
> > annotating EVERY function with either __always_inline or noinline.
> > 
> 
> __always_inline and noinline does work.

I vote for the, get rid of the current inline, rename __always_inline to 
inline, and then remove all non needed inlines from the kernel.

We'll, probably start adding a lot more noinlines.

-- Steve

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