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Re:[Xen-devel] [PATCH 1/3] Output Virtual Block Device requests information to /proc/xen/vbd

  • To: <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Satoshi Uchida" <s-uchida@xxxxxxxxxxxxx>
  • Date: Wed, 21 Jun 2006 20:13:33 +0900
  • Delivery-date: Wed, 21 Jun 2006 04:14:00 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcaVHpSFNdxJ0eY4RkWhMTFPp6FeMQAAyZHgAAB9CCA=

Hi, Keir.

>> This patch add /xen/proc/vbd.
>> This proc file stores counts of I/O requests for VBD.
>> I/O requests is counted for each Domains.
>We keep getting complained at for adding stuff to /proc. Shouldn't this 
under the blkback's sysfs directory somewhere?
>  -- Keir


In my subjective, currently, procfs is used for representing dynamic
information such as statistical data, and sysfs is used for representing
statical information such as module parameters.
In this case, I think that this I/O information is  former, so information
is put into procfs in this time.
As similar example, ballon infromation exist in procfs.

Is it better that realizing at sysfs?

Satoshi UCHIDA

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