From: "Chris Friesen" <cfriesen@nortel.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>
Subject: Re: unpredictability in scheduler test results -- still present
Date: Tue, 30 Sep 2008 15:14:07 -0600 [thread overview]
Message-ID: <48E2969F.9000303@nortel.com> (raw)
In-Reply-To: <20080930111217.GA21367@elte.hu>
Ingo Molnar wrote:
> * Chris Friesen <cfriesen@nortel.com> wrote:
>> Ingo Molnar wrote:
>>> OTOH, what does 'truning on dftrace' exactly mean? Just enabling it in
>>> the .config, or also activating it via /debug/tracing/current_tracer?
>> Just enabling it in the .config is enough to trigger the behaviour
>> change. I'm not explicitly activating any traces.
> ok, that would be a clear ftrace bug i guess?
It's either an ftrace bug or a fragile load balancer bug. I wonder if
it's related somehow to the stop_machine() call in ftrace_dynamic_init()?
Chris
prev parent reply other threads:[~2008-09-30 21:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-18 22:45 unpredictability in scheduler test results Chris Friesen
2008-09-24 15:19 ` unpredictability in scheduler test results -- still present Chris Friesen
2008-09-24 23:37 ` Chris Friesen
2008-09-27 20:04 ` Ingo Molnar
2008-09-29 15:43 ` Chris Friesen
2008-09-30 11:12 ` Ingo Molnar
2008-09-30 21:14 ` Chris Friesen [this message]
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