From: Serge Hallyn <serge.hallyn@canonical.com>
To: Tejun Heo <tj@kernel.org>
Cc: Pavel Emelyanov <xemul@parallels.com>,
Kapil Arya <kapil@ccs.neu.edu>, Gene Cooperman <gene@ccs.neu.edu>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Linux Containers <containers@lists.osdl.org>
Subject: Re: [Ksummit-2010-discuss] checkpoint-restart: naked patch
Date: Thu, 18 Nov 2010 21:54:03 -0600 [thread overview]
Message-ID: <20101119035403.GA24031@hallyn.com> (raw)
In-Reply-To: <4CE4F672.1030904@kernel.org>
Quoting Tejun Heo (tj@kernel.org):
> * And, most of all, there are userland implementation and
> virtualization, making the benefit to overhead ratio completely off.
> Userland implementation _already_ achieves most of what's necessary
Guess I'll just be offensive here and say, straight-out: I don't
believe it. Can I see the userspace implementation of c/r?
If it's as good as the kernel level c/r, then aweseome - we don't
need the kernel patches.
If it's not as good, then the thing is, we're not drawing arbitrary
lines saying "is this good enough", rather we want completely
reliable and transparent c/r. IOW, the running task and the other
end can't tell that a migration happened, and, if checkpoint says
it worked, then restart must succeed.
-serge
next prev parent reply other threads:[~2010-11-19 3:54 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Pine.LNX.4.64.1011021530470.12128@takamine.ncl.cs.columbia.edu>
2010-11-02 21:35 ` [Ksummit-2010-discuss] checkpoint-restart: naked patch Tejun Heo
2010-11-02 21:47 ` Christoph Hellwig
2010-11-04 1:47 ` Nathan Lynch
2010-11-04 7:36 ` Tejun Heo
2010-11-04 16:04 ` Gene Cooperman
2010-11-04 20:45 ` Nathan Lynch
2010-11-06 6:48 ` Matt Helsley
2010-11-04 4:34 ` Oren Laadan
2010-11-04 14:25 ` Christoph Hellwig
2010-11-04 3:40 ` Kapil Arya
2010-11-04 8:05 ` Tejun Heo
2010-11-04 16:44 ` Gene Cooperman
2010-11-05 9:28 ` Tejun Heo
2010-11-05 23:18 ` Oren Laadan
2010-11-06 10:13 ` Tejun Heo
2010-11-06 0:36 ` Kapil Arya
2010-11-06 22:55 ` Oren Laadan
2010-11-07 19:42 ` Gene Cooperman
2010-11-07 21:30 ` Oren Laadan
2010-11-07 23:05 ` Gene Cooperman
2010-11-08 3:55 ` Oren Laadan
2010-11-08 16:26 ` Gene Cooperman
2010-11-08 18:14 ` Oren Laadan
2010-11-08 18:37 ` Gene Cooperman
2010-11-08 19:34 ` Oren Laadan
2010-11-08 19:05 ` Dan Smith
2010-11-17 11:14 ` Tejun Heo
2010-11-17 15:33 ` Dan Smith
2010-11-17 15:40 ` Tejun Heo
2010-11-17 17:04 ` Alexey Dobriyan
2010-11-17 10:45 ` Tejun Heo
2010-11-17 12:12 ` Tejun Heo
2010-11-06 5:32 ` Matt Helsley
2010-11-06 15:01 ` Oren Laadan
2010-11-06 20:40 ` Gene Cooperman
2010-11-06 22:41 ` Oren Laadan
2010-11-07 18:49 ` Gene Cooperman
[not found] ` <20101107184927.GF31077-Rl5vdzG4YPwx/1z6v04GWfZ8FUJU4vz8@public.gmane.org>
2010-11-07 21:59 ` Oren Laadan
2010-11-07 21:59 ` Oren Laadan
2010-11-17 11:57 ` Tejun Heo
2010-11-17 15:39 ` Serge E. Hallyn
2010-11-17 15:46 ` Tejun Heo
2010-11-18 9:13 ` Pavel Emelyanov
[not found] ` <4CE4EE21.6050305-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2010-11-18 9:48 ` Tejun Heo
2010-11-18 9:48 ` Tejun Heo
2010-11-18 20:13 ` Jose R. Santos
2010-11-19 3:54 ` Serge Hallyn [this message]
2010-11-18 19:53 ` Oren Laadan
2010-11-19 4:10 ` Serge Hallyn
2010-11-19 14:04 ` Tejun Heo
2010-11-20 18:05 ` Oren Laadan
[not found] ` <4CE683E1.6010500-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2010-11-19 14:36 ` Kirill Korotaev
2010-11-19 14:36 ` Kirill Korotaev
[not found] ` <04F4899E-B5C7-4BAF-8F2F-05D507A91408-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2010-11-19 15:33 ` Tejun Heo
2010-11-19 15:33 ` Tejun Heo
2010-11-19 16:00 ` Alexey Dobriyan
2010-11-19 16:01 ` Alexey Dobriyan
2010-11-19 16:10 ` Tejun Heo
2010-11-19 16:25 ` Alexey Dobriyan
2010-11-19 16:06 ` Tejun Heo
2010-11-19 16:16 ` Alexey Dobriyan
2010-11-19 16:19 ` Tejun Heo
2010-11-19 16:27 ` Alexey Dobriyan
[not found] ` <AANLkTin7kd3crS+fTLLea5PhAii7B3dz=n7p7YtQ6d4g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-11-19 16:32 ` Tejun Heo
2010-11-19 16:32 ` Tejun Heo
2010-11-19 16:38 ` Alexey Dobriyan
2010-11-19 16:50 ` Tejun Heo
2010-11-19 16:50 ` Tejun Heo
2010-11-19 16:55 ` Alexey Dobriyan
2010-11-20 17:58 ` Oren Laadan
2010-11-20 18:08 ` Oren Laadan
2010-11-20 18:08 ` Oren Laadan
2010-11-20 18:11 ` Oren Laadan
2010-11-20 18:11 ` Oren Laadan
[not found] ` <4CE69B8C.6050606-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2010-11-20 18:15 ` Oren Laadan
2010-11-20 18:15 ` Oren Laadan
2010-11-20 19:33 ` Tejun Heo
2010-11-21 8:18 ` Gene Cooperman
2010-11-21 8:18 ` Gene Cooperman
2010-11-21 8:21 ` Gene Cooperman
2010-11-22 18:02 ` Sukadev Bhattiprolu
2010-11-23 17:53 ` Oren Laadan
2010-11-24 3:50 ` Kapil Arya
2010-11-25 16:04 ` Oren Laadan
2010-11-29 4:09 ` Gene Cooperman
2010-11-21 22:41 ` Grant Likely
2010-11-22 17:34 ` Oren Laadan
2010-11-22 17:18 ` Oren Laadan
2010-11-17 22:17 ` Matt Helsley
[not found] ` <20101117221713.GA27736-52DBMbEzqgQ/wnmkkaCWp/UQ3DHhIser@public.gmane.org>
2010-11-18 10:06 ` Tejun Heo
2010-11-18 10:06 ` Tejun Heo
2010-11-18 20:25 ` Oren Laadan
2010-11-18 20:25 ` Oren Laadan
2010-11-07 21:44 ` Oren Laadan
2010-11-07 23:31 ` Gene Cooperman
2010-11-05 22:24 ` Oren Laadan
2010-11-04 4:03 ` Oren Laadan
2010-11-04 9:43 ` Tejun Heo
2010-11-04 12:48 ` Luck, Tony
2010-11-04 13:06 ` Tejun Heo
2010-11-06 10:12 ` Matt Helsley
2010-11-06 11:03 ` Tejun Heo
2010-11-07 22:59 ` Davide Libenzi
2010-11-08 2:32 ` david
2010-11-18 20:41 ` Oren Laadan
2010-11-05 3:55 ` Kapil Arya
2010-11-05 11:57 ` Luck, Tony
2010-11-05 17:17 ` Gene Cooperman
2010-11-06 1:16 ` Matt Helsley
2010-11-06 4:06 ` Oren Laadan
2010-11-06 5:18 ` Matt Helsley
2010-11-06 21:00 ` Oren Laadan
2010-11-05 17:31 ` Sukadev Bhattiprolu
2010-11-06 21:05 ` Oren Laadan
2010-11-08 16:55 ` Grant Likely
2010-11-08 21:01 ` Nathan Lynch
2010-11-11 6:27 ` Nathan Lynch
2010-11-17 5:29 ` Anton Blanchard
2010-11-17 11:08 ` Tejun Heo
2010-11-18 9:53 ` Alan Cox
2010-11-18 12:27 ` Alexey Dobriyan
2010-11-19 6:33 ` Gene Cooperman
2010-11-21 23:20 ` Grant Likely
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