linux-kernel - Re: [patch] ftrace, v15

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Message-ID: <20080427131516.GA8850@elte.hu>
Date:	Sun, 27 Apr 2008 15:15:16 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Subject: Re: [patch] ftrace, v15


* KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com> wrote:

> Hi Ingo,
> 
> >  the current/latest ftrace tree can be pulled from:
> >
> >    git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel.git
> >
> >  the full diffs are too large to be included here, but the shortlog and
> >  the diffstat is below. Not much changed in the fundamentals since the
> >  last lkml posting - but many small details were refined.
> 
> I hope ftrace people discussio LTTng people more. AFAIK nobody explain 
> pros. and cons. ftrace against marker approach. (of cource, LTTng 
> people doen't explain it too)

check the tree :-) It has these commits too:

    Markers use imv jump
    Linux Kernel Markers - Use Immediate Values
    Markers - define non optimized marker
    Markers - remove extra format argument

    LTTng instrumentation net
    LTTng instrumentation mm
    LTTng instrumentation kernel
    LTTng instrumentation ipc
    LTTng instrumentation fs

[ the latter ones are only there for testing - Mathieu is working on a
  different approach for syscall instrumentation. ]

Enjoy,

	Ingo
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