On Thursday, January 20, 2011 14:40:00 Helmut Hullen wrote:

Hallo, Andreas,
=20
Du meintest am 20.01.11:

quoted

Maybe it is a very stupid question but I want to ask it anyway. In
general, 'btrfs filesystem balance' takes very long to finish and
produces lots of IO. So what are the classical usage scenarios, whe=

n

quoted

it is (really) worth doing a balance?

=20
Here (Kernel 2.6.37, btrfs git Nov. 2010): balancing two disks/
partitions with 2 and 1.5 TByte needs about 24 hours (CPU 1.5 GHz).
=20

That's the effect of lots of IO. IMHO it shouldn't take more than 4-8h =
for 1TB=20
7200rpm disks in an otherwise idle system, as such it's rather ineffici=
ent=20
right now.

--=20
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