From: Stanislav Meduna <stano@meduna.org>
To: Tim Sander <tim@krieglstein.org>,
"linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>
Subject: Re: i.MX28 milliseconds latencies, interrupts disabled in arch_cpu_idle?
Date: Sat, 19 Apr 2014 00:21:07 +0200 [thread overview]
Message-ID: <5351A553.6040104@meduna.org> (raw)
In-Reply-To: <53516B19.6040702@meduna.org>
On 18.04.2014 20:12, Stanislav Meduna wrote:
> Would it be possible to 'lie' to the tracing infrastructure and
> treat the cpu_do_idle() as interrupts enabled without
> actually enabling them?
Hm.. but this actually happens - the call to arch_cpu_idle()
is surrounded by stop_critical_timings()/start_critical_timings()
so the time should not be traced. Weird...
--
Stano
next prev parent reply other threads:[~2014-04-18 22:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-17 20:38 i.MX28 milliseconds latencies, interrupts disabled in arch_cpu_idle? Stanislav Meduna
2014-04-18 16:09 ` Tim Sander
2014-04-18 18:12 ` Stanislav Meduna
2014-04-18 22:21 ` Stanislav Meduna [this message]
2014-04-19 21:24 ` Tim Sander
2014-04-21 9:00 ` Stanislav Meduna
2014-04-19 10:36 ` Gilles Chanteperdrix
2014-04-21 9:11 ` Stanislav Meduna
2014-04-21 10:09 ` Gilles Chanteperdrix
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