From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch 2/2] arm: Allow forced irq threading
Date: Thu, 14 Feb 2013 21:49:31 +0000 [thread overview]
Message-ID: <20130214214931.GK17833@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20130214205304.993009840@linutronix.de>
On Thu, Feb 14, 2013 at 08:53:53PM -0000, Thomas Gleixner wrote:
> All timer interrupts and the perf interrupt are marked NO_THREAD, so
> its safe to allow forced interrupt threading.
What effect does this have on IRQ latency, particularly on the slower CPUs?
If it adds to the IRQ latency, then it must be conditional; there are
platforms where IRQ latency is important for things like network devices
to keep up (particularly the SMC NICs).
next prev parent reply other threads:[~2013-02-14 21:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-14 20:53 [patch 0/2] ARM: Allow forced irq threading Thomas Gleixner
2013-02-14 20:53 ` [patch 1/2] arm: Mark pmu interupt IRQF_NO_THREAD Thomas Gleixner
2013-02-15 9:51 ` Will Deacon
2013-08-12 19:52 ` Sebastian Andrzej Siewior
2013-08-13 11:11 ` Will Deacon
2013-08-14 9:52 ` Sebastian Andrzej Siewior
2013-02-14 20:53 ` [patch 2/2] arm: Allow forced irq threading Thomas Gleixner
2013-02-14 21:49 ` Russell King - ARM Linux [this message]
2013-02-14 22:04 ` Thomas Gleixner
2013-08-12 20:03 ` [PATCH 2/2 v2] " Sebastian Andrzej Siewior
2013-08-14 10:08 ` Sekhar Nori
2013-08-14 14:43 ` [PATCH 2/2 v3] " Sebastian Andrzej Siewior
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