From: Christopher Lameter <cl@linux.com>
To: Frederic Weisbecker <frederic@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Chris Metcalf <cmetcalf@mellanox.com>,
Thomas Gleixner <tglx@linutronix.de>,
Luiz Capitulino <lcapitulino@redhat.com>,
"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
Ingo Molnar <mingo@kernel.org>, Wanpeng Li <kernellwp@gmail.com>,
Mike Galbraith <efault@gmx.de>, Rik van Riel <riel@redhat.com>
Subject: Re: [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload
Date: Tue, 19 Dec 2017 10:03:37 -0600 (CST) [thread overview]
Message-ID: <alpine.DEB.2.20.1712191002480.16727@nuc-kabylake> (raw)
In-Reply-To: <1513653838-31314-5-git-send-email-frederic@kernel.org>
On Tue, 19 Dec 2017, Frederic Weisbecker wrote:
> Adding the boot parameter "isolcpus=nohz_offload" will now outsource
> these scheduler ticks to the global workqueue so that a housekeeping CPU
> handles that tick remotely.
The vmstat processing required per cpu area access. How does that work if
the code is running on a remote processor?
next prev parent reply other threads:[~2017-12-19 16:03 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-19 3:23 [RFC PATCH 0/5] isolation: 1Hz residual tick offloading Frederic Weisbecker
2017-12-19 3:23 ` [PATCH 1/5] sched: Move tick code to a separate file Frederic Weisbecker
2017-12-19 9:08 ` Peter Zijlstra
2017-12-19 16:33 ` Frederic Weisbecker
2017-12-19 3:23 ` [PATCH 2/5] sched: Rename init_rq_hrtick to hrtick_rq_init Frederic Weisbecker
2017-12-19 3:23 ` [PATCH 3/5] sched/isolation: Add scheduler tick offloading interface Frederic Weisbecker
2017-12-19 3:23 ` [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload Frederic Weisbecker
2017-12-19 9:19 ` Peter Zijlstra
2017-12-19 14:34 ` Luiz Capitulino
2017-12-19 16:01 ` Christopher Lameter
2017-12-19 16:04 ` Peter Zijlstra
2017-12-19 16:38 ` Christopher Lameter
2017-12-19 16:49 ` Peter Zijlstra
2017-12-19 17:26 ` Christopher Lameter
2017-12-19 16:26 ` Frederic Weisbecker
2017-12-19 16:03 ` Christopher Lameter [this message]
2017-12-19 16:32 ` Frederic Weisbecker
2017-12-19 17:23 ` Christopher Lameter
2017-12-19 3:23 ` [PATCH 5/5] sched/isolation: Document "nohz_offload" flag Frederic Weisbecker
2017-12-21 17:14 [PATCH 0/5] isolation: 1Hz residual tick offloading v2 Frederic Weisbecker
2017-12-21 17:14 ` [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload Frederic Weisbecker
2017-12-30 3:55 [PATCH 0/5] isolation: 1Hz residual tick offloading v3 Frederic Weisbecker
2017-12-30 3:55 ` [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload Frederic Weisbecker
2018-01-04 4:25 [GIT PULL] isolation: 1Hz residual tick offloading v3 Frederic Weisbecker
2018-01-04 4:25 ` [PATCH 4/5] sched/isolation: Residual 1Hz scheduler tick offload Frederic Weisbecker
2018-01-12 19:22 ` Luiz Capitulino
2018-01-16 15:57 ` Frederic Weisbecker
2018-01-16 16:53 ` Luiz Capitulino
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