From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: riel@redhat.com
Cc: linux-kernel@vger.kernel.org, lizefan@huawei.com, tj@kernel.org,
gregkh@linuxfoundation.org
Subject: Re: [PATCH 2/2] show nohz_full cpus in sysfs
Date: Sat, 28 Mar 2015 05:18:17 +0100 [thread overview]
Message-ID: <1427516297.2447.59.camel@gmail.com> (raw)
In-Reply-To: <1427493027-15955-3-git-send-email-riel@redhat.com>
On Fri, 2015-03-27 at 17:50 -0400, riel@redhat.com wrote:
> From: Rik van Riel <riel@redhat.com>
>
> Currently there is no way to query which CPUs are in nohz_full
> mode from userspace.
Hm, they're both (as of your last set) invariant. Is this so an HPC app
can automatically bind itself or something? You can't have more than
one such app, or rather if you did, they'd need more than which CPUs are
HPC capable, they'd need occupancy too, so the query mechanism seems
kinda useless. Box driver has to allocate CPUs, and presumably knows
the configuration of the box (those who don't become ex box drivers).
-Mike
next prev parent reply other threads:[~2015-03-28 4:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 21:50 [PATCH 0/2] show isolated & nohz_full cpus in sysfs riel
2015-03-27 21:50 ` [PATCH 1/2] show isolated " riel
2015-03-27 21:50 ` [PATCH 2/2] show nohz_full " riel
2015-03-28 4:18 ` Mike Galbraith [this message]
2015-03-28 13:35 ` Rik van Riel
2015-03-28 14:10 ` Mike Galbraith
2015-03-28 16:02 ` Frederic Weisbecker
2015-03-28 16:15 ` Rik van Riel
2015-03-28 18:06 ` Frederic Weisbecker
2015-04-24 19:24 [PATCH 0/2 resend] show isolated & " riel
2015-04-24 19:24 ` [PATCH 2/2] show " riel
2015-04-28 19:18 ` Chris Metcalf
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