From: Karim Yaghmour <karim.yaghmour@opersys.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
mingo@elte.hu
Subject: Re: Reading perf counters at ftrace trace boundaries
Date: Sun, 11 Aug 2013 22:59:58 -0300 [thread overview]
Message-ID: <5208419E.2000605@opersys.com> (raw)
In-Reply-To: <20130812014748.GP19750@two.firstfloor.org>
On 13-08-11 10:47 PM, Andi Kleen wrote:
> That's what normal sampling already does.
>
> If you're worried about systematic shadow effects just randomize a bit.
That's actually the point. I'd like to be able to study/compare both
approaches. I could be completely off, but I'd like to see if a divide
and conquer approach (i.e. based on ftrace) wouldn't take the guesswork
out of smart randomization. Just a hunch.
--
Karim Yaghmour
CEO - Opersys inc. / www.opersys.com
http://twitter.com/karimyaghmour
next prev parent reply other threads:[~2013-08-12 2:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-12 0:03 Reading perf counters at ftrace trace boundaries Karim Yaghmour
2013-08-12 1:23 ` Andi Kleen
2013-08-12 1:39 ` Karim Yaghmour
2013-08-12 1:47 ` Andi Kleen
2013-08-12 1:59 ` Karim Yaghmour [this message]
2013-08-12 2:24 ` zhangwei(Jovi)
2013-08-12 15:26 ` Karim Yaghmour
2013-08-13 7:12 ` zhangwei(Jovi)
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