linux-kernel - Re: IO controller Mini-Summit 2009

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Message-Id: <20090914.104111.226776844.ryov@valinux.co.jp>
Date:	Mon, 14 Sep 2009 10:41:11 +0900 (JST)
From:	Ryo Tsuruta <ryov@...inux.co.jp>
To:	dhaval@...ux.vnet.ibm.com
Cc:	linux-kernel@...r.kernel.org, dm-devel@...hat.com,
	containers@...ts.linux-foundation.org,
	virtualization@...ts.linux-foundation.org,
	xen-devel@...ts.xensource.com, ioband-devel@...ts.sourceforge.net,
	corsetproject@...glegroups.com, kunai@...ux-foundation.jp,
	osonoi@...ux-foundation.jp, balbir@...ibm.com, vgoyal@...hat.com
Subject: Re: IO controller Mini-Summit 2009

Hi Dhaval, 

Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:
> On Wed, Aug 26, 2009 at 08:32:51PM +0900, Ryo Tsuruta wrote:
> > Hi All,
> > 
> > As I have notified before, The 1st Linux IO controller Mini-Summit
> > will be held in Tokyo Japan on Oct 17 -- day before the 9th Linux
> > kernel summit. So I would like to propose the following topics for 
> > the mini-summit and discuss about them.
> > 
> > - Multiple IO controller development projects
> >   - There are two activities for the development of IO controller,
> >     Vivek's io-controller and dm-ioband. Do we have to pick one of
> >     them to put into the mainline? How to advance the development?
> > 
> > - Extensions of struct bio
> >   - Make a bio point to the io_context of a process which creates the
> >     I/O request. This allows to pass the IO scheduling class and
> >     priority information to IO controller even if the IO is submitted
> >     by another process which does not create the request, such as a
> >     worker thread.
> >   - Add a new flag to struct bio to identify the bio as urgent. This
> >     gives IO controller a chance to handle the bio as high priority.
> >     This flag should be set if the bio is created for the page-out
> >     operation.
> > 
> > - I/O tracking and charging policy
> >   - Which process, a page-requesting process or a page-returning
> >     process, should be charged for the I/O caused by page reclaim?
> >     We should consider two cases where the IO flushes anonymous pages
> >     and file mapped pages.
> > 
> > I think this is a good opportunity to meet face-to-face to discuss
> > about IO controller development. I would like to many developers to
> > join this mini-summit. Please visit the following URL for more
> > information about the mini-summit.
> > http://apps.sourceforge.net/trac/ioband/wiki/iosummit
> > If you would like to join the mini-summit, please e-mail to me or post
> > on the wiki page, 
> > (You need an account on SourceForge.net to edit the wiki page.)
> > 
> > All comments, questions, suggestions and anything else are appreciated.
> > 
> 
> Hi Ryo,
> 
> Would you be having a remote dial-in for folks who cannot attend in
> person?

Yes. I will provide a conference call and let you know the dial number
if you would join the summit.

Thanks,
Ryo Tsuruta
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