On Jan 17, 2008, at 3:55 AM, Miklos Szeredi wrote:
Hey, I just found /proc/X/mountstats. How does this fit in to the
big
picture?
It seems to show some counters for NFS mounts, no other filesystem
uses it. Format looks rather less nice, than /proc/X/mounts (why do
we need long english sentences under /proc?).
I introduced /proc/self/mountstats because we need a way for non-
block-device-based file systems to report I/O statistics. Everything
else I tried was rejected, and apparently what we ended up with was
reviewed by only a handful of people, so no one else likes it or uses
it.
It can go away for all I care, as long as we retain some flexible
mechanism for non-block-based file systems to report I/O stats. As
far as I am aware, there are only two user utilities that understand
and parse this data, and I maintain both.
--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
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