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Date: Fri, 19 Aug 2016 14:34:37 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: GeHao Kang <kanghao0928@gmail.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>, fweisbec@gmail.com,
        linux-api@vger.kernel.org, linux-kernel@vger.kernel.org,
        tglx@linutronix.de, mingo@kernel.org, paulmck@linux.vnet.ibm.com
Subject: Re: Context switch latency in tickless isolated CPU
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On Thu, Aug 18, 2016 at 11:25:00AM +0800, GeHao Kang wrote:

> Is the increased time fixed in each context switch? Because this increased time
> will be the latency of the real time application, we hope to confirm it.
> Thanks.

Why are you wanting to use nohz_full if you do syscalls?