linux-kernel - Re: [PATCH -tip 00/14] perf-probe updates

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Date:	Tue, 15 Dec 2009 20:22:58 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Masami Hiramatsu <mhiramat@...hat.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	lkml <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jim Keniston <jkenisto@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	"Frank Ch. Eigler" <fche@...hat.com>,
	Jason Baron <jbaron@...hat.com>,
	"K.Prasad" <prasad@...ux.vnet.ibm.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>
Subject: Re: [PATCH -tip 00/14] perf-probe updates


* Masami Hiramatsu <mhiramat@...hat.com> wrote:

> Hi Ingo,
> 
> Here are several bugfixes and updates of perf-probe.
> This updates includes below features.
> 
>   - Support checking kernel Build-ID
> 	Comparing vmlinux build-id and running kernel build-id
> 	can prevent user to set incorrect probes by using
> 	old/incorrect vmlinux.
> 
>   - Symbol search by libelf/kallsyms
> 	This allows to check probed symbol exists in the kernel
> 	even if debuginfo is not available.
> 
>   - Support glob expression with --del option (like --del '*')
> 	This allows users to use wildcard for specifying
> 	deleting events.
> 
>   - Reject adding same-name events
> 	Rejecting to add event which name already exists.
> 
>   - Support event name specifying for new events
> 	This allows users to set their own name to new
> 	events. Currently setting group name is not
> 	allowed, because it will conflict with other
> 	tracepoints and kmem event.
> 
> I think the glob expression (wildcard matching) can be
> applied to other perf tools for choosing events, and it
> will give user better experience :-)

Very nice improvements! :)

Applied, thanks!

	Ingo
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