From: Linus Torvalds <torvalds@linux-foundation.org>
To: Nick Piggin <npiggin@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>, Ingo Molnar <mingo@elte.hu>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [rfc] x86: optimise page fault path a little
Date: Thu, 13 Nov 2008 19:18:11 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.0811131916530.3468@nehalem.linux-foundation.org> (raw)
In-Reply-To: <20081114024347.GB24414@wotan.suse.de>
On Fri, 14 Nov 2008, Nick Piggin wrote:
>
> I don't exactly know what you mean by random micro-optimization. It is
> what it is. I like counting cachelines and branches and I thought you
> did as well.
You're missing the point.
If you spent a bit more time on it, it would be a cleanup too, and we
wouldn't need this discussion.
As it is, it's a wash. At which point I'd simply rather not touch the
code.
You can have your cake and eat it too, and I tried to explain how. And I
don't understand why you argue against it.
Linus
next prev parent reply other threads:[~2008-11-14 3:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-13 7:28 Nick Piggin
2008-11-13 7:41 ` Ingo Molnar
2008-11-13 7:50 ` Nick Piggin
2008-11-13 8:02 ` Ingo Molnar
2008-11-14 1:22 ` Nick Piggin
2008-11-13 16:06 ` Ingo Molnar
2008-11-14 1:16 ` Nick Piggin
2008-11-13 8:35 ` Andi Kleen
2008-11-13 16:00 ` Linus Torvalds
2008-11-14 1:58 ` Nick Piggin
2008-11-14 2:07 ` Linus Torvalds
2008-11-14 2:43 ` Nick Piggin
2008-11-14 3:18 ` Linus Torvalds [this message]
2008-11-14 3:30 ` Nick Piggin
2008-11-14 4:44 ` Linus Torvalds
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