From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <andi@firstfloor.org>
Subject: Re: Perf support for interpreted and Just-In-Time translated
 olanguages
Date: Wed, 10 Dec 2014 19:05:29 +0100
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To: David Ahern <dsahern@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>, Arnaldo Carvalho de Melo <acme@kernel.org>, Brendan Gregg <brendan.d.gregg@gmail.com>, Carl Love <cel@us.ibm.com>, Pekka Enberg <penberg@kernel.org>, "linux-perf-use." <linux-perf-users@vger.kernel.org>

On Wed, Dec 10, 2014 at 10:39:53AM -0700, David Ahern wrote:
> On 12/10/14 10:32 AM, Andi Kleen wrote:
> >> From what I understood, how would it insert that event into the
> >>perf.data event stream? Only if it necessarily involved a new mmap, via
> >>the kernel, etc.
> >
> >That's the new interface to be defined.
> >
> >Just write a perf.data?
> 
> Pawel Moll's new ioctl -- assumming it gets committed.

We can't push large volume data -- like line numbers and executable code -
through a ioctl.

-Andi