IO controller Mini-Summit 2009
dhaval at linux.vnet.ibm.com
Fri Sep 11 04:16:32 PDT 2009
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
> - 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.
> 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.
Would you be having a remote dial-in for folks who cannot attend in
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