From: Pavel Machek <pavel@suse.cz>
To: Mike Frysinger <vapier.adi@gmail.com>
Cc: paulmck@linux.vnet.ibm.com,
Mathieu Desnoyers <compudj@krystal.dyndns.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Bryan Wu <cooloney@kernel.org>,
linux-kernel@vger.kernel.org, ltt-dev@lists.casi.polymtl.ca,
uclinux-dist-devel@blackfin.uclinux.org
Subject: Re: [ltt-dev] [RFC git tree] Userspace RCU (urcu) for Linux (repost)
Date: Sun, 22 Feb 2009 15:23:51 +0100 [thread overview]
Message-ID: <20090222142351.GG1586@ucw.cz> (raw)
In-Reply-To: <8bd0f97a0902132146t2badab79ue76e0a43d74c95ca@mail.gmail.com>
Hi!
> > If Blackfin handles hotplug CPU, that may
> > need attention as well, since tasks affinitied to the CPU being removed
> > can end up with their affinity set to all CPUs. And there are probably
> > other issues.
>
> no, we dont support hotplugging of CPUs. there is no hardware support
> for it, so i think the only thing you'd gain is perhaps power savings
> ? not sure it would even work in our case though as the hardware does
> not support restarting or shutdown of one core ... they both have to
> restart/shutdown. putting one core into a constant idle loop would
> save power, but that can already be accomplished by reducing the apps
> that go onto a specific core.
Well, cpu hotplug is needed for suspend and hibernation...
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2009-02-22 14:24 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-06 3:05 [RFC git tree] Userspace RCU (urcu) for Linux Mathieu Desnoyers
2009-02-06 4:58 ` [RFC git tree] Userspace RCU (urcu) for Linux (repost) Mathieu Desnoyers
2009-02-06 13:06 ` Paul E. McKenney
2009-02-06 16:34 ` Paul E. McKenney
2009-02-07 15:10 ` Paul E. McKenney
2009-02-07 22:16 ` Paul E. McKenney
2009-02-08 0:19 ` Mathieu Desnoyers
2009-02-07 23:38 ` Mathieu Desnoyers
2009-02-08 0:44 ` Paul E. McKenney
2009-02-08 21:46 ` Mathieu Desnoyers
2009-02-08 22:36 ` Paul E. McKenney
2009-02-09 0:24 ` Paul E. McKenney
2009-02-09 0:54 ` Mathieu Desnoyers
2009-02-09 1:08 ` [ltt-dev] " Mathieu Desnoyers
2009-02-09 3:47 ` Paul E. McKenney
2009-02-09 3:42 ` Paul E. McKenney
2009-02-09 0:40 ` [ltt-dev] " Mathieu Desnoyers
2009-02-08 22:44 ` Mathieu Desnoyers
2009-02-09 4:11 ` Paul E. McKenney
2009-02-09 4:53 ` Mathieu Desnoyers
2009-02-09 5:17 ` [ltt-dev] " Mathieu Desnoyers
2009-02-09 7:03 ` Mathieu Desnoyers
2009-02-09 15:33 ` Paul E. McKenney
2009-02-10 19:17 ` Mathieu Desnoyers
2009-02-10 21:16 ` Paul E. McKenney
2009-02-10 21:28 ` Mathieu Desnoyers
2009-02-10 22:21 ` Paul E. McKenney
2009-02-10 22:58 ` Paul E. McKenney
2009-02-10 23:01 ` Paul E. McKenney
2009-02-11 0:57 ` Mathieu Desnoyers
2009-02-11 5:28 ` Paul E. McKenney
2009-02-11 6:35 ` Mathieu Desnoyers
2009-02-11 15:32 ` Paul E. McKenney
2009-02-11 18:52 ` Mathieu Desnoyers
2009-02-11 20:09 ` Paul E. McKenney
2009-02-11 21:42 ` Mathieu Desnoyers
2009-02-11 22:08 ` Mathieu Desnoyers
[not found] ` <20090212003549.GU6694@linux.vnet.ibm.com>
2009-02-12 2:33 ` Paul E. McKenney
2009-02-12 2:37 ` Paul E. McKenney
2009-02-12 4:10 ` Mathieu Desnoyers
2009-02-12 5:09 ` Paul E. McKenney
2009-02-12 5:47 ` Mathieu Desnoyers
2009-02-12 16:18 ` Paul E. McKenney
2009-02-12 18:40 ` Mathieu Desnoyers
2009-02-12 20:28 ` Paul E. McKenney
2009-02-12 21:27 ` Mathieu Desnoyers
2009-02-12 23:26 ` Paul E. McKenney
2009-02-13 13:12 ` Mathieu Desnoyers
2009-02-12 4:08 ` Mathieu Desnoyers
2009-02-12 5:01 ` Paul E. McKenney
2009-02-12 7:05 ` Mathieu Desnoyers
2009-02-12 16:46 ` Paul E. McKenney
2009-02-12 19:29 ` Mathieu Desnoyers
2009-02-12 20:02 ` Paul E. McKenney
2009-02-12 20:09 ` Mathieu Desnoyers
2009-02-12 20:35 ` Paul E. McKenney
2009-02-12 21:15 ` Mathieu Desnoyers
2009-02-12 20:13 ` Linus Torvalds
2009-02-12 20:39 ` Paul E. McKenney
2009-02-12 21:15 ` Linus Torvalds
2009-02-12 21:59 ` Paul E. McKenney
2009-02-13 13:50 ` Nick Piggin
2009-02-13 14:56 ` Paul E. McKenney
2009-02-13 15:10 ` Mathieu Desnoyers
2009-02-13 15:55 ` Mathieu Desnoyers
2009-02-13 16:18 ` Linus Torvalds
2009-02-13 17:33 ` Mathieu Desnoyers
2009-02-13 17:53 ` Linus Torvalds
2009-02-13 18:09 ` Linus Torvalds
2009-02-13 18:54 ` Mathieu Desnoyers
2009-02-13 19:36 ` Paul E. McKenney
2009-02-14 5:07 ` Mike Frysinger
2009-02-14 5:20 ` Paul E. McKenney
2009-02-14 5:46 ` Mike Frysinger
2009-02-14 15:06 ` Paul E. McKenney
2009-02-14 17:37 ` Mike Frysinger
2009-02-22 14:23 ` Pavel Machek [this message]
2009-02-22 18:28 ` Mike Frysinger
2009-02-14 6:42 ` Mathieu Desnoyers
2009-02-14 3:15 ` [Uclinux-dist-devel] " Mike Frysinger
2009-02-13 18:40 ` Mathieu Desnoyers
2009-02-13 16:05 ` Linus Torvalds
2009-02-14 3:11 ` [Uclinux-dist-devel] " Mike Frysinger
2009-02-14 4:58 ` Robin Getz
2009-02-12 19:38 ` Mathieu Desnoyers
2009-02-12 20:17 ` Paul E. McKenney
2009-02-12 21:53 ` Mathieu Desnoyers
2009-02-12 23:04 ` Paul E. McKenney
2009-02-13 12:49 ` Mathieu Desnoyers
2009-02-11 5:08 ` Lai Jiangshan
2009-02-11 8:58 ` Mathieu Desnoyers
2009-02-09 13:23 ` Paul E. McKenney
2009-02-09 17:28 ` Mathieu Desnoyers
2009-02-09 17:47 ` Paul E. McKenney
2009-02-09 18:13 ` Mathieu Desnoyers
2009-02-09 18:19 ` Mathieu Desnoyers
2009-02-09 18:37 ` Paul E. McKenney
2009-02-09 18:49 ` Paul E. McKenney
2009-02-09 19:05 ` Mathieu Desnoyers
2009-02-09 19:15 ` Mathieu Desnoyers
2009-02-09 19:35 ` Paul E. McKenney
2009-02-09 19:23 ` Paul E. McKenney
2009-02-09 13:16 ` Paul E. McKenney
2009-02-09 17:19 ` Bert Wesarg
2009-02-09 17:34 ` Paul E. McKenney
2009-02-09 17:35 ` Bert Wesarg
2009-02-09 17:40 ` Paul E. McKenney
2009-02-09 17:42 ` Mathieu Desnoyers
2009-02-09 18:00 ` Paul E. McKenney
2009-02-09 17:45 ` Bert Wesarg
2009-02-09 17:59 ` Paul E. McKenney
2009-02-07 22:56 ` Kyle Moffett
2009-02-07 23:50 ` Mathieu Desnoyers
2009-02-08 0:13 ` Paul E. McKenney
2009-02-06 8:55 ` [RFC git tree] Userspace RCU (urcu) for Linux Bert Wesarg
2009-02-06 11:36 ` Mathieu Desnoyers
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=20090222142351.GG1586@ucw.cz \
--to=pavel@suse.cz \
--cc=compudj@krystal.dyndns.org \
--cc=cooloney@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ltt-dev@lists.casi.polymtl.ca \
--cc=nickpiggin@yahoo.com.au \
--cc=paulmck@linux.vnet.ibm.com \
--cc=torvalds@linux-foundation.org \
--cc=uclinux-dist-devel@blackfin.uclinux.org \
--cc=vapier.adi@gmail.com \
/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.