From: Nicholas Miell <nmiell@comcast.net>
To: Mathieu Desnoyers <compudj@krystal.dyndns.org>
Cc: Martin Bligh <mbligh@google.com>,
"Frank Ch. Eigler" <fche@redhat.com>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
prasanna@in.ibm.com, Andrew Morton <akpm@osdl.org>,
Ingo Molnar <mingo@elte.hu>,
Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
Paul Mundt <lethal@linux-sh.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Jes Sorensen <jes@sgi.com>, Tom Zanussi <zanussi@us.ibm.com>,
Richard J Moore <richardj_moore@uk.ibm.com>,
Michel Dagenais <michel.dagenais@polymtl.ca>,
Christoph Hellwig <hch@infradead.org>,
Greg Kroah-Hartman <gregkh@suse.de>,
Thomas Gleixner <tglx@linutronix.de>,
William Cohen <wcohen@redhat.com>,
ltt-dev@shafik.org, systemtap@sources.redhat.com,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Karim Yaghmour <karim@opersys.com>, Pavel Machek <pavel@suse.cz>,
Joe Perches <joe@perches.com>,
"Randy.Dunlap" <rdunlap@xenotime.net>,
"Jose R. Santos" <jrs@us.ibm.com>
Subject: Re: Performance analysis of Linux Kernel Markers 0.20 for 2.6.17
Date: Sat, 30 Sep 2006 12:02:13 -0700 [thread overview]
Message-ID: <1159642933.2355.1.camel@entropy> (raw)
In-Reply-To: <20060930180157.GA25761@Krystal>
On Sat, 2006-09-30 at 14:01 -0400, Mathieu Desnoyers wrote:
> Hi,
>
> Following the huge discussion thread about tracing/static vs dynamic
> instrumentation/markers, a consensus seems to emerge about the need for a
> marker system in the Linux kernel. The main issues this mechanism addresses are:
>
> - Identify code important to runtime data collection/analysis tools in tree so
> that it follows the code changes naturally.
> - Be visually appealing to kernel developers.
> - Have a very low impact on the system performance.
> - Integrate in the standard kernel infrastructure : use C and loadable modules.
>
> The time has come for some performance measurements of the Linux Kernel Markers,
> which follows. I attach a PDF with tables and charts which condense these
> results.
Has anyone done any performance measurements with the "regular function
call replaced by a NOP" type of marker?
--
Nicholas Miell <nmiell@comcast.net>
next prev parent reply other threads:[~2006-09-30 19:02 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-30 18:01 Performance analysis of Linux Kernel Markers 0.20 for 2.6.17 Mathieu Desnoyers
2006-09-30 19:02 ` Nicholas Miell [this message]
2006-10-01 3:42 ` Mathieu Desnoyers
2006-10-01 4:19 ` Nicholas Miell
2006-10-01 15:33 ` Mathieu Desnoyers
2006-10-01 23:57 ` Nicholas Miell
2006-10-02 0:07 ` Mathieu Desnoyers
2006-10-02 0:53 ` Nicholas Miell
2006-10-02 14:31 ` [UPDATE] " Mathieu Desnoyers
2006-10-02 15:24 ` Jose R. Santos
2006-10-02 15:38 ` Mathieu Desnoyers
2006-10-08 19:31 ` dean gaudet
2006-10-08 19:40 ` dean gaudet
2006-10-10 13:17 ` Mathieu Desnoyers
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