Date: Thu, 9 Apr 2009 06:38:41 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Li Zefan <lizf@cn.fujitsu.com>, Jens Axboe <jens.axboe@oracle.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>,
       Steven Whitehouse <swhiteho@redhat.com>,
       Tom Zanussi <tzanussi@gmail.com>,
       =?iso-8859-1?Q?Fr=E9d=E9ric?= Weisbecker <fweisbec@gmail.com>,
       rostedt@goodmis.org, linux-kernel@vger.kernel.org, mingo@redhat.com,
       axboe@kernel.dk
Subject: Re: Multiple Tracers
Message-ID: <20090409043841.GA5352@elte.hu>
References: <1239197703.3359.25.camel@localhost.localdomain> <20090408135312.GR18581@elte.hu> <1239199899.3359.39.camel@localhost.localdomain> <20090408142413.GF12931@elte.hu> <49DD5964.8000803@cn.fujitsu.com> <20090409025507.GB24946@ghostprotocols.net> <49DD6791.2010507@cn.fujitsu.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <49DD6791.2010507@cn.fujitsu.com>
User-Agent: Mutt/1.5.18 (2008-05-17)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 953
Lines: 27


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> >>> Tom Zanussi (Cc:-ed) recently converted the blktrace tracepoints to 
> >> I guess you mean Arnaldo <acme@redhat.com> ;)
> > 
> > Nope, Tom:
> > 
> > Message-Id: <1235725261.8512.89.camel@charm-linux>
> >  
> 
> Ah, sorry for the mistake, I didn't notice that patch, and I 
> thought Ingo meant the ftrace-plugin patch.

yeah - i meant the Zed-trace patches Tom posted some time ago.

I think it would be nice to use the blktrace bits of it too, to 
extend built-in user-defined per tracepoint filtering expressions to 
blktrace and to make blktrace events more generally available. It 
does not impact existing blktrace functionality, it extends on it.

	Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/