This is not XFS specific, I see it on every filesys. I do a
"mv . /newlocation" and see this with iostat:
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-
sz avgqu-sz await svctm %util
xvdb 608,60 2,60 25967,20 102,40 85,31 5,37
8,77 1,58 96,72
xvdg 0,00 608,60 0,00 26532,10 87,19 7,55
12,41 0,12 7,44
Reading takes 97% I/O time, writing 7%. This is on the same raidset, but
I see the same when copying between two different single disks also. Or
is it just an effect of write caching that writes look faster than
reads?
--
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Michael Monnerie, Ing. BSc
it-management Internet Services
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