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Date: Tue, 11 Aug 2009 14:25:09 +0200
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Jason Baron <jbaron@redhat.com>, linux-kernel@vger.kernel.org,
       laijs@cn.fujitsu.com, rostedt@goodmis.org, peterz@infradead.org,
       mathieu.desnoyers@polymtl.ca, jiayingz@google.com, mbligh@google.com,
       lizf@cn.fujitsu.com
Subject: Re: [PATCH 10/12] add perf counter support
Message-ID: <20090811122507.GG4938@nowhere>
References: <cover.1249932670.git.jbaron@redhat.com> <b9d3c5f9d0ff2fb71993530873807443a0c7eb64.1249932670.git.jbaron@redhat.com> <20090811121227.GF4938@nowhere> <20090811121711.GA31549@elte.hu>
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On Tue, Aug 11, 2009 at 02:17:11PM +0200, Ingo Molnar wrote:
> 
> * Frederic Weisbecker <fweisbec@gmail.com> wrote:
> 
> > On Mon, Aug 10, 2009 at 04:53:02PM -0400, Jason Baron wrote:
> > > Make 'perf stat -e syscalls:sys_enter_blah' work with syscall style tracepoints.
> > 
> > 
> > It would be nice to also be able to type:
> > 
> > perf stat -e syscalls:blah
> > 
> > and then having both enter/exit counters.
> 
> Plus wildcard/regex support would be nice as well in the listing of 
> events. That way one could do a shortcut of:
> 
>  perf stat -e syscalls:*
> 
> to trace all syscalls. Or:
> 
>  perf stat -e syscalls:*read*
> 
> to see all the read variants - etc.
> 
> 	Ingo


Plus filters in syscalls field. Because arguments are wrapped and post-processed,
they are not treated as usual fields.
I must confess this part is not trivial though.