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Hi,

In Lyon there was some discussion about how interesting it would be to also look
at the seek-size statistics between consecutive reads. While this is doable for
plain reads and for 'iov' monitoring, I can't see how one could do that with
just 'io'

There was a suggestion from somebody (maybe Andy, but probably not) that we
could get offset of the last-byte of the last reported read. But this a) doesn't
seem very meaningful and b) doesn't 'fit' into the readv-io record, either.

The only reasonable option seems to be to only enable iov on a sub-set of
servers (for a limited period of time) and to collect full statistics there, if
somebody really cares that much about that.

Any thoughts?

Cheers,
Matevz

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