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Message-ID: <y0mzlwdum3y.fsf@ton.toronto.redhat.com>
Date:	Fri, 14 Dec 2007 14:12:17 -0500
From:	fche@...hat.com (Frank Ch. Eigler)
To:	eranian@....hp.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


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.

- FChE
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