linux-kernel - Re: [PATCH 2/2] show nohz

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Message-ID: <CAFTL4hxAMYZGjCuxMohBbmS8YPfHqO8sisSjUacQ=u-OF3DTfA@mail.gmail.com>
Date:	Sat, 28 Mar 2015 17:02:15 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, Li Zefan <lizefan@...wei.com>,
	Tejun Heo <tj@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/2] show nohz_full cpus in sysfs

2015-03-27 22:50 GMT+01:00  <riel@...hat.com>:
> From: Rik van Riel <riel@...hat.com>
>
> Currently there is no way to query which CPUs are in nohz_full
> mode from userspace.

Well you can watch dmesg | grep NO_HZ
But surely sysfs is more convenient from an app.

I guess it's ok, as long as it's strictly Read Only. Here it seems to
be the case. And it's not chmod'able, right?
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