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Message-ID: <BANLkTikNuPg4nfXMqpffpt+5zZwLM_nSzw@mail.gmail.com>
Date: Wed, 8 Jun 2011 08:55:26 +0300
From: Pekka Enberg <penberg@...nel.org>
To: pageexec@...email.hu
Cc: Ingo Molnar <mingo@...e.hu>, Andrew Lutomirski <luto@....edu>,
x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
linux-kernel@...r.kernel.org, Jesper Juhl <jj@...osbits.net>,
Borislav Petkov <bp@...en8.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Andrew Morton <akpm@...ux-foundation.org>,
Arjan van de Ven <arjan@...radead.org>,
Jan Beulich <JBeulich@...ell.com>,
richard -rw- weinberger <richard.weinberger@...il.com>,
Mikael Pettersson <mikpe@...uu.se>,
Andi Kleen <andi@...stfloor.org>,
Brian Gerst <brgerst@...il.com>,
Louis Rilling <Louis.Rilling@...labs.com>,
Valdis.Kletnieks@...edu
Subject: Re: [PATCH v5 8/9] x86-64: Emulate legacy vsyscalls
On Wed, Jun 8, 2011 at 2:24 AM, <pageexec@...email.hu> wrote:
> to give you an idea:
> - if a code path executes in 1M or 1K cycles once every hour, then
> it's not a fast path, it doesn't matter to anyone whether it runs
> 1 or 10 cycles faster or not,
I'm pretty sure people who try to optimize kernel boot times, for
example, don't agree with you.
Pekka
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