[LAD] [OT] bash vs disk activity

Ross Vandegrift ross at kallisti.us
Fri Oct 19 00:54:00 UTC 2007

On Fri, Oct 19, 2007 at 01:45:59AM +0200, Esben Stien wrote:
> Ross Vandegrift <ross at kallisti.us> writes:
> > "iostat -x" gives you detailed I/O statistics on each partition
> ..which is not really what you want. What you want is io statistics on
> the thread.

The use-case is to time when a umount will complete flushing data to
disk so the disk can be removed.  There isn't really such a thing as
"per-thread" i/o - all the actual disk writes are coming from pdflush

Ross Vandegrift
ross at kallisti.us

"The good Christian should beware of mathematicians, and all those who
make empty prophecies. The danger already exists that the mathematicians
have made a covenant with the devil to darken the spirit and to confine
man in the bonds of Hell."
	--St. Augustine, De Genesi ad Litteram, Book II, xviii, 37

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