9 Oct
2007
9 Oct
'07
9:30 a.m.
On Tue, Oct 09, 2007 at 05:50:12PM +0700, Patrick Shirkey wrote:
For example if I transfer 200mb to a usb disk the copy
command takes
about 30 seconds before it returns and the data takes about 5 minutes
before it is actually finished being transferred and the device is
unmountable.
How would I track the 5 minutes of data transfer with bash?
There's not a super-easy way since that data is being written in the
background out of the buffer-cache. You could use iostat and vmstat
for this purpose, but it kinda seems like overkill to me.
"iostat -x" gives you detailed I/O statistics on each partition
"vmstat" gives you information on various VM data, including buffers
My idea would just be to umount the disk and wait until that returns.
--
Ross Vandegrift
ross(a)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