From: Jens Axboe <axboe@suse.de>
To: Shawn Starr <shawn.starr@rogers.com>
Cc: Lenz Grimmer <lenz@grimmer.com>,
Jesper Juhl <jesper.juhl@gmail.com>,
Alejandro Bonilla <abonilla@linuxwireless.org>,
Dave Hansen <dave@sr71.net>,
Henrik Brix Andersen <brix@gentoo.org>,
hdaps-devel@lists.sourceforge.net,
LKML List <linux-kernel@vger.kernel.org>
Subject: Re: IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer))
Date: Mon, 4 Jul 2005 16:46:35 +0200 [thread overview]
Message-ID: <20050704144634.GQ1444@suse.de> (raw)
In-Reply-To: <20050704142723.2202.qmail@web88009.mail.re2.yahoo.com>
(don't top post!)
On Mon, Jul 04 2005, Shawn Starr wrote:
>
> We could put it in userspace, but if the system is
> swapping like mad, can we still get a critical
> response if this remains in userspace fully?
Just make sure the program isn't swapped out.
> Someone mentioned we should use a kernel thread(s) to
> handle stopping all I/O so we can safely park heads.
That's madness, we can't add a kernel thread for every single little
silly thing. You don't need to stop any io, you just want to make sure
that your park request gets issued right after the current io has
finished.
--
Jens Axboe
next prev parent reply other threads:[~2005-07-04 14:46 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-04 1:32 IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Jesper Juhl
2005-07-04 2:12 ` Alejandro Bonilla
2005-07-04 6:00 ` Lenz Grimmer
2005-07-04 6:17 ` Jens Axboe
2005-07-04 5:30 ` Alejandro Bonilla
2005-07-04 6:37 ` Jens Axboe
2005-07-04 7:16 ` Arjan van de Ven
2005-07-04 7:22 ` Jens Axboe
2005-07-04 7:27 ` Arjan van de Ven
2005-07-04 7:30 ` Jens Axboe
2005-07-04 10:33 ` Lenz Grimmer
2005-07-04 11:06 ` Jens Axboe
2005-07-04 13:18 ` IBM HDAPS things are looking up Lenz Grimmer
2005-07-04 13:25 ` Jens Axboe
2005-07-04 14:32 ` [Hdaps-devel] " Shawn Starr
2005-07-07 8:03 ` IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Jens Axboe
2005-07-07 8:41 ` Head parking (was: IBM HDAPS things are looking up) Lenz Grimmer
2005-07-07 8:48 ` Jens Axboe
2005-07-07 10:17 ` [Hdaps-devel] " Lenz Grimmer
2005-07-07 15:06 ` Shawn Starr
2005-07-07 9:07 ` Pekka Enberg
2005-07-07 11:44 ` Jens Axboe
2005-07-07 13:28 ` Pekka Enberg
2005-07-07 14:28 ` IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Shawn Starr
2005-07-07 14:37 ` Alejandro Bonilla
2005-07-07 15:06 ` Jens Axboe
2005-07-07 20:43 ` Folkert van Heusden
2005-07-07 15:05 ` Jens Axboe
2005-07-07 23:00 ` Jon Escombe
2005-07-07 23:31 ` Alejandro Bonilla
2005-07-08 6:31 ` Jens Axboe
2005-07-08 18:32 ` Shawn Starr
2005-07-07 15:03 ` Shawn Starr
2005-07-07 17:02 ` Clemens Koller
2005-07-07 17:15 ` Alejandro Bonilla
2005-07-07 17:34 ` Jens Axboe
2005-07-07 17:49 ` Matthew Garrett
2005-07-07 18:52 ` Jens Axboe
2005-07-07 17:27 ` Jens Axboe
2005-07-07 17:38 ` Dave Hansen
2005-07-07 18:01 ` Lee Revell
2005-07-07 18:03 ` Dave Hansen
2005-07-07 18:48 ` Jens Axboe
2005-07-04 13:03 ` Pavel Machek
2005-07-04 20:30 ` IBM HDAPS things are looking up Lenz Grimmer
2005-07-04 22:12 ` Pavel Machek
2005-07-04 21:08 ` IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Alejandro Bonilla
2005-07-05 7:14 ` Jens Axboe
2005-07-05 12:29 ` Alejandro Bonilla
2005-07-05 15:41 ` Sander
2005-07-05 15:52 ` Alejandro Bonilla
2005-07-05 15:45 ` Lee Revell
2005-07-04 10:28 ` Lenz Grimmer
2005-07-04 14:27 ` Shawn Starr
2005-07-04 14:46 ` Jens Axboe [this message]
2005-07-04 17:24 ` IBM HDAPS things are looking up Alejandro Bonilla
2005-07-04 18:36 ` dean gaudet
2005-07-05 5:13 ` Lee Revell
2005-07-04 18:40 ` Jens Axboe
2005-07-04 18:59 ` IBM HDAPS things are looking up (was: Re: [Hdaps-devel] Re: [ltp] IBM HDAPS Someone interested? (Accelerometer)) Aaron Cohen
2005-07-04 19:27 ` Lenz Grimmer
2005-07-04 8:45 ` Andrey Panin
2005-07-04 10:49 ` Pekka Enberg
2005-07-04 11:00 ` Jesper Juhl
2005-07-04 12:32 ` Pavel Machek
[not found] <4msjB-DS-9@gated-at.bofh.it>
[not found] ` <4mste-IL-1@gated-at.bofh.it>
[not found] ` <4msME-SM-9@gated-at.bofh.it>
[not found] ` <4msWl-Yq-5@gated-at.bofh.it>
[not found] ` <4mtza-1vg-15@gated-at.bofh.it>
[not found] ` <4mtII-1Ab-13@gated-at.bofh.it>
[not found] ` <4mtSm-1FA-5@gated-at.bofh.it>
[not found] ` <4mtSn-1FA-11@gated-at.bofh.it>
[not found] ` <4mwx1-3N9-25@gated-at.bofh.it>
[not found] ` <4mx9A-4qm-1@gated-at.bofh.it>
[not found] ` <4nzCr-6fN-19@gated-at.bofh.it>
[not found] ` <4nI36-527-9@gated-at.bofh.it>
2005-07-08 0:56 ` Bodo Eggert
2005-07-08 6:26 ` Jens Axboe
2005-07-08 8:49 ` Vojtech Pavlik
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