From: Ingo Molnar <mingo@elte.hu>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: KOSAKI Motohiro <m-kosaki@ceres.dti.ne.jp>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [patch for 2.6.26 0/7] Architecture Independent Markers
Date: Fri, 28 Mar 2008 15:18:47 +0100 [thread overview]
Message-ID: <20080328141845.GF29218@elte.hu> (raw)
In-Reply-To: <y0mabkjvufd.fsf@ton.toronto.redhat.com>
* Frank Ch. Eigler <fche@redhat.com> wrote:
>
> >> > NACK-ed-by: Ingo Molnar <mingo@elte.hu>
> >> [...]
> >> I wonder why nobody doesn't fix this serious problem until now. [...]
>
> Frankly, the "problem" has not yet been established. Ingo has failed
> to respond to Mathieu's analysis of the actual instruction streams,
> which cast doubt on Ingo's technique of simply counting bytes. [...]
uhm no. The "difference" is due to Matthieu counting on the platform
that is most favorable to his argument: 32-bit, while i counted on
64-bit where most servers operate (and where instrumentation micro-cost
actually matters).
Ingo
next prev parent reply other threads:[~2008-03-28 14:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-27 13:20 [patch for 2.6.26 0/7] Architecture Independent Markers Mathieu Desnoyers
2008-03-27 13:20 ` [patch for 2.6.26 1/7] Markers - define non optimized marker Mathieu Desnoyers
2008-03-27 13:20 ` [patch for 2.6.26 2/7] LTTng instrumentation fs Mathieu Desnoyers
2008-03-27 13:21 ` [patch for 2.6.26 3/7] LTTng instrumentation ipc Mathieu Desnoyers
2008-03-27 13:21 ` [patch for 2.6.26 4/7] LTTng instrumentation kernel Mathieu Desnoyers
2008-03-27 13:21 ` [patch for 2.6.26 5/7] LTTng instrumentation mm Mathieu Desnoyers
2008-03-27 13:21 ` Mathieu Desnoyers
2008-03-27 13:21 ` [patch for 2.6.26 6/7] LTTng instrumentation net Mathieu Desnoyers
2008-03-27 13:21 ` [patch for 2.6.26 7/7] LTTng instrumentation - lib Mathieu Desnoyers
2008-03-27 15:40 ` [patch for 2.6.26 0/7] Architecture Independent Markers Ingo Molnar
2008-03-27 17:08 ` KOSAKI Motohiro
2008-03-28 10:15 ` Ingo Molnar
2008-03-28 13:34 ` [OT] " Masami Hiramatsu
2008-04-01 1:43 ` Denys Vlasenko
2008-04-01 14:30 ` Masami Hiramatsu
2008-03-28 13:40 ` Frank Ch. Eigler
2008-03-28 14:18 ` Ingo Molnar [this message]
2008-03-28 14:41 ` Ingo Molnar
2008-03-28 15:31 ` Frank Ch. Eigler
2008-03-27 20:39 ` Mathieu Desnoyers
2008-03-28 9:43 ` Ingo Molnar
2008-03-28 11:22 ` Ingo Molnar
2008-03-28 11:38 ` Mathieu Desnoyers
2008-03-28 13:33 ` Ingo Molnar
2008-03-29 17:16 ` Mathieu Desnoyers
2008-03-27 21:49 ` Frank Ch. Eigler
2008-03-28 0:01 ` Denys Vlasenko
2008-03-28 1:02 ` [PATCH] Markers - remove extra format argument Mathieu Desnoyers
2008-03-28 5:35 ` Masami Hiramatsu
2008-03-28 1:04 ` [patch for 2.6.26 1/7] Markers - define non optimized marker (updated) Mathieu Desnoyers
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