From: Nikolay Borisov <n.borisov.lkml@gmail.com>
To: "T. Smith" <tlsmith3777@gmail.com>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Jon Masters <jcm@redhat.com>, Carsten Emde <C.Emde@osadl.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
Clark Williams <williams@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Wagner <wagi@monom.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: runaway latency detection
Date: Sat, 20 Aug 2016 20:54:23 +0300 [thread overview]
Message-ID: <072e2e64-2e9f-eb2b-eca2-00d8aa62974a@gmail.com> (raw)
In-Reply-To: <94710CE6-857F-424A-9D50-8569D6282367@gmail.com>
On 20.08.2016 20:03, T. Smith wrote:
> The goal is to isolate causes of indeterminism when using the PREEMPT_RT kernel configuration with full preemption and to characterize latency and jitter using ftrace, any recommendations?
What hardware is it ? If it's x86 it's entirely possible you are seeing
SMI. Perhaps you should look into disabling those if you are on x86?
next prev parent reply other threads:[~2016-08-20 17:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-20 17:03 runaway latency detection T. Smith
2016-08-20 17:54 ` Nikolay Borisov [this message]
[not found] ` <CAChUvXP8Zy4uz95NWFEtF9oU6rHjPZ0Uz5qPMqY1n3i2eBeaSw@mail.gmail.com>
2016-08-21 3:45 ` Steven Rostedt
2016-08-22 2:22 T. Smith
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