linux-kernel - Re: [PATCH -tip v10 0/9] kprobes: Kprobes jump optimization support

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Message-ID: <20100223170508.GB5357@nowhere>
Date:	Tue, 23 Feb 2010 18:05:20 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Masami Hiramatsu <mhiramat@...hat.com>, Ingo Molnar <mingo@...e.hu>
Cc:	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Jim Keniston <jkenisto@...ibm.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Anders Kaseorg <andersk@...lice.com>,
	Tim Abbott <tabbott@...lice.com>,
	Andi Kleen <andi@...stfloor.org>,
	Jason Baron <jbaron@...hat.com>,
	Mathieu Desnoyers <compudj@...stal.dyndns.org>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>
Subject: Re: [PATCH -tip v10 0/9] kprobes: Kprobes jump optimization support

On Mon, Feb 22, 2010 at 06:14:35PM -0500, Masami Hiramatsu wrote:
> Masami Hiramatsu wrote:
> > Hi Ingo,
> > 
> > Here are the patchset of the kprobes jump optimization v10
> > (a.k.a. Djprobe). This version just updated a document,
> > and applicable for 2.6.33-rc8-tip.
> 
> BTW, this optimization is automatically done in kprobes.
> (no other tools/changes are required for it)
> This means all users including perf-probe have a benefit
> from this feature just by configuring CONFIG_OPTPROBES=y :)
> So it's a part of perf-probe/kprobe-tracer enhancement, IMHO.
> 
> Thank you,


Yep. I guess we can give it a try for 2.6.34.
Ingo?

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