On Tuesday, January 25, 2011 15:28:11 Magicloud Magiclouds wrote:

So you were saying that, even an unlink operation, the system walks
through all file data blocks? I thought unlink wouldn't have to write
too much data.

No, but the amount of data to be changed if the number of extents is sm=
all=20
will be lower.

=20
On Tue, Jan 25, 2011 at 6:30 PM, Hubert Kario [off-list ref] wrote:

quoted

On Tuesday 25 of January 2011 07:45:02 Magicloud Magiclouds wrote:

quoted

Hi,
  I am using 2.6.36.3 kernel with btrfs, 512MB memory and a very s=

low

quoted

quoted

disk, no special options for mounting btrfs except noatime. Now I
found it very slow. When I rm a 5GB movie, it took 20 secs.

=20
try mounting with nodatacow and defragment the directory the file r=

esides

quoted

in
=20
Regards
--
Hubert Kario
QBS - Quality Business Software
02-656 Warszawa, ul. Ksawer=C3=B3w 30/85
tel. +48 (22) 646-61-51, 646-74-24
www.qbs.com.pl

--=20
Hubert Kario
QBS - Quality Business Software
02-656 Warszawa, ul. Ksawer=C3=B3w 30/85
tel. +48 (22) 646-61-51, 646-74-24
www.qbs.com.pl
--
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