All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kevin Hilman <khilman@ti.com>
To: Geoff Levand <geoff@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linaro-sched-sig@lists.linaro.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Stephen Hemminger <shemminger@vyatta.com>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Chris Metcalf <cmetcalf@tilera.com>,
	Ingo Molnar <mingo@kernel.org>,
	Gilad Ben Yossef <gilad@benyossef.com>,
	Alessio Igor Bogani <abogani@kernel.org>,
	Avi Kivity <avi@redhat.com>, Max Krasnyansky <maxk@qualcomm.com>,
	Zen Lin <zen@openhuawei.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Christoph Lameter <cl@linux.com>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC][PATCH 00/32] Nohz cpusets v2 (adaptive tickless kernel)
Date: Fri, 30 Mar 2012 07:10:43 -0700	[thread overview]
Message-ID: <87k422gows.fsf@ti.com> (raw)
In-Reply-To: <1333073233.4912.44.camel@smoke> (Geoff Levand's message of "Thu, 29 Mar 2012 19:07:13 -0700")

Geoff Levand <geoff@infradead.org> writes:

> Hi All,
>
> On Fri, 2012-03-30 at 02:45 +0200, Frederic Weisbecker wrote:
>> On Thu, Mar 29, 2012 at 05:33:46PM -0700, Kevin Hilman wrote:
>> > For anyone interested in collaborating on ARM support, my
>> > work-in-progress branch is below[1] based on Frederic's cpuset-v2
>> > branch.  Patches and testing welcome.
>> > 
>> > [1] git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux.git wip/arm-nohz-cpusets
>> 
>> Nice! Thanks for working on this. You may want to work with Geoff Levand who's working
>> on the ARM port too.
>
> You can see my work here:
>
>   http://git.kernel.org/?p=linux/kernel/git/geoff/nohz.git

Great! Will have a closer look.

A quick look suggests we've done almost exactly the same thing.  Guess
that's a good sign. :) 

> I also put a simple test I got from Frederic here:
>
>   http://git.kernel.org/?p=linux/kernel/git/geoff/nohz-tests.git

Great, having a common test to compare results was going to be my next
question.  I'll start playing with these next week.   Thanks.

> Feel free to expand on either!

> Kevin, I'll take a look at your work, I guess it has the same things as
> mine.  

Yeah, we've done basically the same thing.  I see though that you've
also already handled some RCU idle cases that I hadn't.

Since you're a little further than me, I'll switch you yours and 
start using that as the base

> Will you be at the Collaboration Summit next week?

Unfortunately, no.

Kevin

      reply	other threads:[~2012-03-30 14:10 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-21 13:58 [RFC][PATCH 00/32] Nohz cpusets v2 (adaptive tickless kernel) Frederic Weisbecker
2012-03-21 13:58 ` Frederic Weisbecker
2012-04-04 15:33   ` warning in tick_nohz_irq_exit Stephen Hemminger
2012-04-04 20:45     ` Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 01/32] nohz: Separate idle sleeping time accounting from nohz logic Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 02/32] nohz: Make nohz API agnostic against idle ticks cputime accounting Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 03/32] nohz: Rename ts->idle_tick to ts->last_tick Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 04/32] nohz: Move nohz load balancer selection into idle logic Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 05/32] nohz: Move ts->idle_calls incrementation into strict " Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 06/32] nohz: Move next idle expiry time record into idle logic area Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 07/32] cpuset: Set up interface for nohz flag Frederic Weisbecker
2012-03-21 14:50   ` Christoph Lameter
2012-03-22  4:03     ` Mike Galbraith
2012-03-22 16:26       ` Christoph Lameter
2012-03-22 19:20         ` Mike Galbraith
2012-03-27 11:22       ` Frederic Weisbecker
2012-03-27 11:53         ` Mike Galbraith
2012-03-27 11:56           ` Frederic Weisbecker
2012-03-27 12:31             ` Mike Galbraith
2012-03-27 11:19     ` Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 08/32] nohz: Try not to give the timekeeping duty to an adaptive tickless cpu Frederic Weisbecker
2012-03-21 14:52   ` Christoph Lameter
2012-03-27 10:50     ` Frederic Weisbecker
2012-03-27 16:08       ` Christoph Lameter
2012-03-27 16:47         ` Peter Zijlstra
2012-03-28  1:12           ` Christoph Lameter
2012-03-28  8:39             ` Peter Zijlstra
2012-03-28 13:11               ` Dimitri Sivanich
2012-03-28 15:51               ` Chris Metcalf
2012-03-30  1:34         ` Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 09/32] x86: New cpuset nohz irq vector Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 10/32] nohz: Adaptive tick stop and restart on nohz cpuset Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 11/32] nohz/cpuset: Don't turn off the tick if rcu needs it Frederic Weisbecker
2012-03-21 14:54   ` Christoph Lameter
2012-03-22  7:38     ` Gilad Ben-Yossef
2012-03-22 16:18       ` Christoph Lameter
2012-03-27 15:21         ` Gilad Ben-Yossef
2012-03-28 12:39           ` Frederic Weisbecker
2012-03-28 12:57             ` Gilad Ben-Yossef
2012-03-28 13:38               ` Frederic Weisbecker
2012-03-22 17:18       ` Chris Metcalf
2012-03-27 15:31         ` Gilad Ben-Yossef
2012-03-27 15:43           ` Chris Metcalf
2012-03-28  8:36             ` Gilad Ben-Yossef
2012-03-27 12:13     ` Frederic Weisbecker
2012-03-27 16:13       ` Christoph Lameter
2012-03-27 16:24         ` Steven Rostedt
2012-03-28  0:42           ` Christoph Lameter
2012-03-28  1:06             ` Steven Rostedt
2012-03-28  1:19               ` Christoph Lameter
2012-03-28  1:35                 ` Steven Rostedt
2012-03-28  3:17                   ` Steven Rostedt
2012-03-28  7:55                     ` Gilad Ben-Yossef
2012-03-28 12:21                       ` Frederic Weisbecker
2012-03-28 12:41                         ` Gilad Ben-Yossef
2012-03-28 14:02                       ` Steven Rostedt
2012-03-28 11:53         ` Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 12/32] nohz/cpuset: Wake up adaptive nohz CPU when a timer gets enqueued Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 13/32] nohz/cpuset: Don't stop the tick if posix cpu timers are running Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 14/32] nohz/cpuset: Restart tick when nohz flag is cleared on cpuset Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 15/32] nohz/cpuset: Restart the tick if printk needs it Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 16/32] rcu: Restart the tick on non-responding adaptive nohz CPUs Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 17/32] rcu: Restart tick if we enqueue a callback in a nohz/cpuset CPU Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 18/32] nohz: Generalize tickless cpu time accounting Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 19/32] nohz/cpuset: Account user and system times in adaptive nohz mode Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 20/32] nohz/cpuset: New API to flush cputimes on nohz cpusets Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 21/32] nohz/cpuset: Flush cputime on threads in nohz cpusets when waiting leader Frederic Weisbecker
2012-03-27 14:10   ` Gilad Ben-Yossef
2012-03-27 14:23     ` Gilad Ben-Yossef
2012-03-28 11:20       ` Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 22/32] nohz/cpuset: Flush cputimes on procfs stat file read Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 23/32] nohz/cpuset: Flush cputimes for getrusage() and times() syscalls Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 24/32] x86: Syscall hooks for nohz cpusets Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 25/32] x86: Exception " Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 26/32] x86: Add adaptive tickless hooks on do_notify_resume() Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 27/32] nohz: Don't restart the tick before scheduling to idle Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 28/32] rcu: New rcu_user_enter() and rcu_user_exit() APIs Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 29/32] rcu: New rcu_user_enter_irq() and rcu_user_exit_irq() APIs Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 30/32] rcu: Switch to extended quiescent state in userspace from nohz cpuset Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 31/32] nohz: Exit RCU idle mode when we schedule before resuming userspace Frederic Weisbecker
2012-03-21 13:58 ` [PATCH 32/32] nohz/cpuset: Disable under some configs Frederic Weisbecker
2012-03-27 15:02 ` [RFC][PATCH 00/32] Nohz cpusets v2 (adaptive tickless kernel) Gilad Ben-Yossef
2012-03-27 15:04   ` Gilad Ben-Yossef
2012-03-27 15:05     ` Gilad Ben-Yossef
2012-03-27 16:22       ` Christoph Lameter
2012-03-28  6:47         ` Gilad Ben-Yossef
2012-03-27 15:10   ` Peter Zijlstra
2012-03-27 15:18     ` Gilad Ben-Yossef
2012-05-22 21:31     ` Thomas Gleixner
2012-05-22 21:50       ` Steven Rostedt
2012-05-22 22:22         ` Thomas Gleixner
2012-03-28 11:43   ` Frederic Weisbecker
2012-03-30  0:33 ` Kevin Hilman
2012-03-30  0:45   ` Frederic Weisbecker
2012-03-30  2:07     ` Geoff Levand
2012-03-30 14:10       ` Kevin Hilman [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87k422gows.fsf@ti.com \
    --to=khilman@ti.com \
    --cc=abogani@kernel.org \
    --cc=akpm@linux-foundation.org \
    --cc=avi@redhat.com \
    --cc=cl@linux.com \
    --cc=cmetcalf@tilera.com \
    --cc=daniel.lezcano@linaro.org \
    --cc=fweisbec@gmail.com \
    --cc=geoff@infradead.org \
    --cc=gilad@benyossef.com \
    --cc=linaro-sched-sig@lists.linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maxk@qualcomm.com \
    --cc=mingo@kernel.org \
    --cc=rostedt@goodmis.org \
    --cc=shemminger@vyatta.com \
    --cc=tglx@linutronix.de \
    --cc=zen@openhuawei.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.