From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Peter LaDow <petela@gocougs.wsu.edu>
Cc: linux-rt-users@vger.kernel.org
Subject: Re: Interrupt Bottom Half Scheduling
Date: Tue, 15 Feb 2011 09:23:27 +0100 [thread overview]
Message-ID: <20110215082327.GK13279@pengutronix.de> (raw)
In-Reply-To: <AANLkTimGobdGMgnc8bVJTvYtH4Tjn2ZVmroeFA2s06WD@mail.gmail.com>
On Mon, Feb 14, 2011 at 02:31:43PM -0800, Peter LaDow wrote:
> How is the scheduling of the hrtimers softirq thread handled?
>
> When querying the RT priority of the hrtimer softirq, I get a priority
> of 50. But when running a priority 99 thread, we still seem to be
> getting interrupted. Shouldn't the hrtimer softirq be put off until
> the CPU is idle or a lower priority task is running?
The problem isn't just $(cat /proc/sys/kernel/sched_rt_runtime_us) being
smaller than $(/proc/sys/kernel/sched_rt_period_us)?
Best regards
Uwe
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Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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prev parent reply other threads:[~2011-02-15 8:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-14 22:31 Interrupt Bottom Half Scheduling Peter LaDow
2011-02-14 23:04 ` Sven-Thorsten Dietrich
2011-02-14 23:08 ` Peter LaDow
2011-02-14 23:35 ` Sven-Thorsten Dietrich
2011-02-14 23:42 ` Peter LaDow
2011-02-15 0:50 ` Sven-Thorsten Dietrich
2011-02-14 23:30 ` Frank Rowand
2011-02-15 1:10 ` Peter LaDow
2011-02-15 1:58 ` Frank Rowand
2011-02-15 2:16 ` Frank Rowand
2011-02-15 16:42 ` Peter LaDow
2011-02-15 18:38 ` Frank Rowand
2011-02-15 18:40 ` Frank Rowand
2011-02-15 19:12 ` Peter LaDow
2011-02-15 19:35 ` Frank Rowand
2011-02-16 20:18 ` Peter LaDow
2011-02-15 8:40 ` Armin Steinhoff
2011-02-15 8:23 ` Uwe Kleine-König [this message]
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