linux-kernel - Re: [perfmon2] perfmon2 merge news

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Date:	Fri, 14 Dec 2007 13:07:09 -0800
From:	Stephane Eranian <eranian@....hp.com>
To:	"Frank Ch. Eigler" <fche@...hat.com>
Cc:	linux-kernel@...r.kernel.org, davem@...emloft.net,
	paulus@...ba.org, akpm@...ux-foundation.org, gregkh@...e.de,
	mucci@...utk.edu, wcohen@...hat.com, robert.richter@....com,
	andi@...stfloor.org, eranian@...il.com, roland@...hat.com
Subject: Re: [perfmon2] perfmon2 merge news

Charles,

On Fri, Dec 14, 2007 at 02:12:17PM -0500, Frank Ch. Eigler wrote:
> 
> Stephane Eranian <eranian@....hp.com> writes:
> 
> > [...]  AFAIK, there is no single call to stop T1 and wait until it
> > is completely off the CPU, unless we go through the (internal)
> > ptrace interface.
> 
> The utrace code supports this style of thread manipulation better
> than ptrace.

Afre you saying that utrace provides a utrace_thread_stop(tid) call
that returns only when the thread tid is off the CPU. And then there
is a utrace_thread_resume(tid) call. If that's the case then that is
what I need.

How are we with regards to utrace integration?

Thanks.

-- 
-Stephane
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